Home / 1,008,907,830.60-1,513,361,745.90-619,467,865.80

Finding the Fourth Proportional to 1,008,907,830.60, 1,513,361,745.90 and 619,467,865.80

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Solution

The fourth proportional to 1,008,907,830.60, 1,513,361,745.90 and 619,467,865.80 is: 929,201,798.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,907,830.60 : 1,513,361,745.90 = 619,467,865.80 : x
  2. Step 2: Convert to fraction form
    1,008,907,830.60/1,513,361,745.90 = 619,467,865.80/x
  3. Step 3: Cross multiply
    1,008,907,830.60x = 1,513,361,745.90 × 619,467,865.80
  4. Step 4: Simplify right side
    1,008,907,830.60x = 937,478,970,916,034,944
  5. Step 5: Solve for x
    x = 937,478,970,916,034,944/1,008,907,830.60
  6. Step 6: Final answer
    x = 929,201,798.70

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Half scale
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Double scale
Find fourth proportional to 1,008,907,831.60, 1,513,361,747.40 and 619,467,866.80
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.