Home / 1,117,801,726.71-1,542,530,201.47-641,570,483.76

Finding the Fourth Proportional to 1,117,801,726.71, 1,542,530,201.47 and 641,570,483.76

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Solution

The fourth proportional to 1,117,801,726.71, 1,542,530,201.47 and 641,570,483.76 is: 885,346,501.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117,801,726.71 : 1,542,530,201.47 = 641,570,483.76 : x
  2. Step 2: Convert to fraction form
    1,117,801,726.71/1,542,530,201.47 = 641,570,483.76/x
  3. Step 3: Cross multiply
    1,117,801,726.71x = 1,542,530,201.47 × 641,570,483.76
  4. Step 4: Simplify right side
    1,117,801,726.71x = 989,641,847,571,518,208
  5. Step 5: Solve for x
    x = 989,641,847,571,518,208/1,117,801,726.71
  6. Step 6: Final answer
    x = 885,346,501.02

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Double scale
Find fourth proportional to 1,117,801,727.71, 1,542,530,202.85 and 641,570,484.76
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.