Home / 57,134,872.90-78,846,587.87-31,029,577.61

Finding the Fourth Proportional to 57,134,872.90, 78,846,587.87 and 31,029,577.61

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Solution

The fourth proportional to 57,134,872.90, 78,846,587.87 and 31,029,577.61 is: 42,821,068.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,134,872.90 : 78,846,587.87 = 31,029,577.61 : x
  2. Step 2: Convert to fraction form
    57,134,872.90/78,846,587.87 = 31,029,577.61/x
  3. Step 3: Cross multiply
    57,134,872.90x = 78,846,587.87 × 31,029,577.61
  4. Step 4: Simplify right side
    57,134,872.90x = 2,446,576,317,046,468.50
  5. Step 5: Solve for x
    x = 2,446,576,317,046,468.50/57,134,872.90
  6. Step 6: Final answer
    x = 42,821,068.69

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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.