Home / 431,518,363.20-647,277,544.80-424,352,001.60

Finding the Fourth Proportional to 431,518,363.20, 647,277,544.80 and 424,352,001.60

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Solution

The fourth proportional to 431,518,363.20, 647,277,544.80 and 424,352,001.60 is: 636,528,002.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,518,363.20 : 647,277,544.80 = 424,352,001.60 : x
  2. Step 2: Convert to fraction form
    431,518,363.20/647,277,544.80 = 424,352,001.60/x
  3. Step 3: Cross multiply
    431,518,363.20x = 647,277,544.80 × 424,352,001.60
  4. Step 4: Simplify right side
    431,518,363.20x = 274,673,521,726,613,664
  5. Step 5: Solve for x
    x = 274,673,521,726,613,664/431,518,363.20
  6. Step 6: Final answer
    x = 636,528,002.40

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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.