Home / 79,827,007.20-119,572,549.20-66,390,079.20

Finding the Fourth Proportional to 79,827,007.20, 119,572,549.20 and 66,390,079.20

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Solution

The fourth proportional to 79,827,007.20, 119,572,549.20 and 66,390,079.20 is: 99,445,429.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,827,007.20 : 119,572,549.20 = 66,390,079.20 : x
  2. Step 2: Convert to fraction form
    79,827,007.20/119,572,549.20 = 66,390,079.20/x
  3. Step 3: Cross multiply
    79,827,007.20x = 119,572,549.20 × 66,390,079.20
  4. Step 4: Simplify right side
    79,827,007.20x = 7,938,431,011,533,897
  5. Step 5: Solve for x
    x = 7,938,431,011,533,897/79,827,007.20
  6. Step 6: Final answer
    x = 99,445,429.44

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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.