Home / 31,712,695.50-47,569,043.25-7,778,167.50

Finding the Fourth Proportional to 31,712,695.50, 47,569,043.25 and 7,778,167.50

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Solution

The fourth proportional to 31,712,695.50, 47,569,043.25 and 7,778,167.50 is: 11,667,251.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,712,695.50 : 47,569,043.25 = 7,778,167.50 : x
  2. Step 2: Convert to fraction form
    31,712,695.50/47,569,043.25 = 7,778,167.50/x
  3. Step 3: Cross multiply
    31,712,695.50x = 47,569,043.25 × 7,778,167.50
  4. Step 4: Simplify right side
    31,712,695.50x = 369,999,986,213,244.38
  5. Step 5: Solve for x
    x = 369,999,986,213,244.38/31,712,695.50
  6. Step 6: Final answer
    x = 11,667,251.25

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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.