Home / 57,020,439.56-78,753,156.80-38,653,838.60

Finding the Fourth Proportional to 57,020,439.56, 78,753,156.80 and 38,653,838.60

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Solution

The fourth proportional to 57,020,439.56, 78,753,156.80 and 38,653,838.60 is: 53,386,326.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,020,439.56 : 78,753,156.80 = 38,653,838.60 : x
  2. Step 2: Convert to fraction form
    57,020,439.56/78,753,156.80 = 38,653,838.60/x
  3. Step 3: Cross multiply
    57,020,439.56x = 78,753,156.80 × 38,653,838.60
  4. Step 4: Simplify right side
    57,020,439.56x = 3,044,111,811,600,657.50
  5. Step 5: Solve for x
    x = 3,044,111,811,600,657.50/57,020,439.56
  6. Step 6: Final answer
    x = 53,386,326.65

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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.