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Finding the Fourth Proportional to 7,648,728.10, 11,473,092.15 and 7,276,719.40

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Solution

The fourth proportional to 7,648,728.10, 11,473,092.15 and 7,276,719.40 is: 10,915,079.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,648,728.10 : 11,473,092.15 = 7,276,719.40 : x
  2. Step 2: Convert to fraction form
    7,648,728.10/11,473,092.15 = 7,276,719.40/x
  3. Step 3: Cross multiply
    7,648,728.10x = 11,473,092.15 × 7,276,719.40
  4. Step 4: Simplify right side
    7,648,728.10x = 83,486,472,225,892.72
  5. Step 5: Solve for x
    x = 83,486,472,225,892.72/7,648,728.10
  6. Step 6: Final answer
    x = 10,915,079.10

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1.5x scale

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.