Home / 56,805,695.20-85,208,542.80-38,665,842.40

Finding the Fourth Proportional to 56,805,695.20, 85,208,542.80 and 38,665,842.40

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Solution

The fourth proportional to 56,805,695.20, 85,208,542.80 and 38,665,842.40 is: 57,998,763.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,805,695.20 : 85,208,542.80 = 38,665,842.40 : x
  2. Step 2: Convert to fraction form
    56,805,695.20/85,208,542.80 = 38,665,842.40/x
  3. Step 3: Cross multiply
    56,805,695.20x = 85,208,542.80 × 38,665,842.40
  4. Step 4: Simplify right side
    56,805,695.20x = 3,294,660,087,038,454.50
  5. Step 5: Solve for x
    x = 3,294,660,087,038,454.50/56,805,695.20
  6. Step 6: Final answer
    x = 57,998,763.60

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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.