Home / 687,750,816.29-949,092,083.82-374,484,280.19

Finding the Fourth Proportional to 687,750,816.29, 949,092,083.82 and 374,484,280.19

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Solution

The fourth proportional to 687,750,816.29, 949,092,083.82 and 374,484,280.19 is: 516,786,105.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,750,816.29 : 949,092,083.82 = 374,484,280.19 : x
  2. Step 2: Convert to fraction form
    687,750,816.29/949,092,083.82 = 374,484,280.19/x
  3. Step 3: Cross multiply
    687,750,816.29x = 949,092,083.82 × 374,484,280.19
  4. Step 4: Simplify right side
    687,750,816.29x = 355,420,065,838,614,400
  5. Step 5: Solve for x
    x = 355,420,065,838,614,400/687,750,816.29
  6. Step 6: Final answer
    x = 516,786,105.41

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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.