Home / 79,719,088.80-119,578,633.20-78,963,261.60

Finding the Fourth Proportional to 79,719,088.80, 119,578,633.20 and 78,963,261.60

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Solution

The fourth proportional to 79,719,088.80, 119,578,633.20 and 78,963,261.60 is: 118,444,892.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,719,088.80 : 119,578,633.20 = 78,963,261.60 : x
  2. Step 2: Convert to fraction form
    79,719,088.80/119,578,633.20 = 78,963,261.60/x
  3. Step 3: Cross multiply
    79,719,088.80x = 119,578,633.20 × 78,963,261.60
  4. Step 4: Simplify right side
    79,719,088.80x = 9,442,318,895,142,044
  5. Step 5: Solve for x
    x = 9,442,318,895,142,044/79,719,088.80
  6. Step 6: Final answer
    x = 118,444,892.40

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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.