Home / 15,072,724.81-20,791,505.41-9,482,080.92

Finding the Fourth Proportional to 15,072,724.81, 20,791,505.41 and 9,482,080.92

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Solution

The fourth proportional to 15,072,724.81, 20,791,505.41 and 9,482,080.92 is: 13,079,701.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,072,724.81 : 20,791,505.41 = 9,482,080.92 : x
  2. Step 2: Convert to fraction form
    15,072,724.81/20,791,505.41 = 9,482,080.92/x
  3. Step 3: Cross multiply
    15,072,724.81x = 20,791,505.41 × 9,482,080.92
  4. Step 4: Simplify right side
    15,072,724.81x = 197,146,736,746,237.78
  5. Step 5: Solve for x
    x = 197,146,736,746,237.78/15,072,724.81
  6. Step 6: Final answer
    x = 13,079,701.20

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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.