Home / 57,780,969.12-79,737,443.52-31,319,216.24

Finding the Fourth Proportional to 57,780,969.12, 79,737,443.52 and 31,319,216.24

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Solution

The fourth proportional to 57,780,969.12, 79,737,443.52 and 31,319,216.24 is: 43,220,359.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,780,969.12 : 79,737,443.52 = 31,319,216.24 : x
  2. Step 2: Convert to fraction form
    57,780,969.12/79,737,443.52 = 31,319,216.24/x
  3. Step 3: Cross multiply
    57,780,969.12x = 79,737,443.52 × 31,319,216.24
  4. Step 4: Simplify right side
    57,780,969.12x = 2,497,314,236,027,666.50
  5. Step 5: Solve for x
    x = 2,497,314,236,027,666.50/57,780,969.12
  6. Step 6: Final answer
    x = 43,220,359.13

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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.