Home / 15,654,553.20-21,604,305.20-9,039,420.72

Finding the Fourth Proportional to 15,654,553.20, 21,604,305.20 and 9,039,420.72

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Solution

The fourth proportional to 15,654,553.20, 21,604,305.20 and 9,039,420.72 is: 12,474,990.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,654,553.20 : 21,604,305.20 = 9,039,420.72 : x
  2. Step 2: Convert to fraction form
    15,654,553.20/21,604,305.20 = 9,039,420.72/x
  3. Step 3: Cross multiply
    15,654,553.20x = 21,604,305.20 × 9,039,420.72
  4. Step 4: Simplify right side
    15,654,553.20x = 195,290,404,066,083.75
  5. Step 5: Solve for x
    x = 195,290,404,066,083.75/15,654,553.20
  6. Step 6: Final answer
    x = 12,474,990.60

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1.5x scale

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.