Home / 424,632,954.90-636,986,214.96-129,594,451.15

Finding the Fourth Proportional to 424,632,954.90, 636,986,214.96 and 129,594,451.15

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Solution

The fourth proportional to 424,632,954.90, 636,986,214.96 and 129,594,451.15 is: 194,402,902.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,632,954.90 : 636,986,214.96 = 129,594,451.15 : x
  2. Step 2: Convert to fraction form
    424,632,954.90/636,986,214.96 = 129,594,451.15/x
  3. Step 3: Cross multiply
    424,632,954.90x = 636,986,214.96 × 129,594,451.15
  4. Step 4: Simplify right side
    424,632,954.90x = 82,549,878,917,857,120
  5. Step 5: Solve for x
    x = 82,549,878,917,857,120/424,632,954.90
  6. Step 6: Final answer
    x = 194,402,902.47

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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.