Home / 711,306,487.18-981,614,575.02-389,429,084.62

Finding the Fourth Proportional to 711,306,487.18, 981,614,575.02 and 389,429,084.62

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Solution

The fourth proportional to 711,306,487.18, 981,614,575.02 and 389,429,084.62 is: 537,418,500.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,306,487.18 : 981,614,575.02 = 389,429,084.62 : x
  2. Step 2: Convert to fraction form
    711,306,487.18/981,614,575.02 = 389,429,084.62/x
  3. Step 3: Cross multiply
    711,306,487.18x = 981,614,575.02 × 389,429,084.62
  4. Step 4: Simplify right side
    711,306,487.18x = 382,269,265,399,688,896
  5. Step 5: Solve for x
    x = 382,269,265,399,688,896/711,306,487.18
  6. Step 6: Final answer
    x = 537,418,500.03

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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.