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Finding the Fourth Proportional to 315,070,390.80, 472,393,009.80 and 151,386,562.80

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Solution

The fourth proportional to 315,070,390.80, 472,393,009.80 and 151,386,562.80 is: 226,977,704.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,070,390.80 : 472,393,009.80 = 151,386,562.80 : x
  2. Step 2: Convert to fraction form
    315,070,390.80/472,393,009.80 = 151,386,562.80/x
  3. Step 3: Cross multiply
    315,070,390.80x = 472,393,009.80 × 151,386,562.80
  4. Step 4: Simplify right side
    315,070,390.80x = 71,513,954,044,368,720
  5. Step 5: Solve for x
    x = 71,513,954,044,368,720/315,070,390.80
  6. Step 6: Final answer
    x = 226,977,704.45

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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.