Home / 124,916,290.32-172,363,913.28-78,473,654.40

Finding the Fourth Proportional to 124,916,290.32, 172,363,913.28 and 78,473,654.40

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Solution

The fourth proportional to 124,916,290.32, 172,363,913.28 and 78,473,654.40 is: 108,280,722.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,916,290.32 : 172,363,913.28 = 78,473,654.40 : x
  2. Step 2: Convert to fraction form
    124,916,290.32/172,363,913.28 = 78,473,654.40/x
  3. Step 3: Cross multiply
    124,916,290.32x = 172,363,913.28 × 78,473,654.40
  4. Step 4: Simplify right side
    124,916,290.32x = 13,526,026,161,766,292
  5. Step 5: Solve for x
    x = 13,526,026,161,766,292/124,916,290.32
  6. Step 6: Final answer
    x = 108,280,722.45

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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.