Home / 424,114,718.40-636,172,077.60-315,275,601.60

Finding the Fourth Proportional to 424,114,718.40, 636,172,077.60 and 315,275,601.60

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Solution

The fourth proportional to 424,114,718.40, 636,172,077.60 and 315,275,601.60 is: 472,913,402.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,114,718.40 : 636,172,077.60 = 315,275,601.60 : x
  2. Step 2: Convert to fraction form
    424,114,718.40/636,172,077.60 = 315,275,601.60/x
  3. Step 3: Cross multiply
    424,114,718.40x = 636,172,077.60 × 315,275,601.60
  4. Step 4: Simplify right side
    424,114,718.40x = 200,569,534,486,461,920
  5. Step 5: Solve for x
    x = 200,569,534,486,461,920/424,114,718.40
  6. Step 6: Final answer
    x = 472,913,402.40

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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.