Home / 66,574,159.20-99,872,168.64-20,516,036.64

Finding the Fourth Proportional to 66,574,159.20, 99,872,168.64 and 20,516,036.64

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Solution

The fourth proportional to 66,574,159.20, 99,872,168.64 and 20,516,036.64 is: 30,777,423.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,574,159.20 : 99,872,168.64 = 20,516,036.64 : x
  2. Step 2: Convert to fraction form
    66,574,159.20/99,872,168.64 = 20,516,036.64/x
  3. Step 3: Cross multiply
    66,574,159.20x = 99,872,168.64 × 20,516,036.64
  4. Step 4: Simplify right side
    66,574,159.20x = 2,048,981,071,134,499
  5. Step 5: Solve for x
    x = 2,048,981,071,134,499/66,574,159.20
  6. Step 6: Final answer
    x = 30,777,423.19

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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.