Home / 1,388,881,398.60-1,916,658,228.06-753,801,900.19

Finding the Fourth Proportional to 1,388,881,398.60, 1,916,658,228.06 and 753,801,900.19

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Solution

The fourth proportional to 1,388,881,398.60, 1,916,658,228.06 and 753,801,900.19 is: 1,040,247,652.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,881,398.60 : 1,916,658,228.06 = 753,801,900.19 : x
  2. Step 2: Convert to fraction form
    1,388,881,398.60/1,916,658,228.06 = 753,801,900.19/x
  3. Step 3: Cross multiply
    1,388,881,398.60x = 1,916,658,228.06 × 753,801,900.19
  4. Step 4: Simplify right side
    1,388,881,398.60x = 1,444,780,614,323,519,232
  5. Step 5: Solve for x
    x = 1,444,780,614,323,519,232/1,388,881,398.60
  6. Step 6: Final answer
    x = 1,040,247,652.38

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Half scale
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Double scale
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1.5x scale

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.