Home / 125,963,731.20-189,029,577.60-57,771,321.60

Finding the Fourth Proportional to 125,963,731.20, 189,029,577.60 and 57,771,321.60

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Solution

The fourth proportional to 125,963,731.20, 189,029,577.60 and 57,771,321.60 is: 86,695,498.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,963,731.20 : 189,029,577.60 = 57,771,321.60 : x
  2. Step 2: Convert to fraction form
    125,963,731.20/189,029,577.60 = 57,771,321.60/x
  3. Step 3: Cross multiply
    125,963,731.20x = 189,029,577.60 × 57,771,321.60
  4. Step 4: Simplify right side
    125,963,731.20x = 10,920,488,519,441,756
  5. Step 5: Solve for x
    x = 10,920,488,519,441,756/125,963,731.20
  6. Step 6: Final answer
    x = 86,695,498.90

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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.