Home / 31,712,695.75-47,569,043.63-7,778,167.75

Finding the Fourth Proportional to 31,712,695.75, 47,569,043.63 and 7,778,167.75

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Solution

The fourth proportional to 31,712,695.75, 47,569,043.63 and 7,778,167.75 is: 11,667,251.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,712,695.75 : 47,569,043.63 = 7,778,167.75 : x
  2. Step 2: Convert to fraction form
    31,712,695.75/47,569,043.63 = 7,778,167.75/x
  3. Step 3: Cross multiply
    31,712,695.75x = 47,569,043.63 × 7,778,167.75
  4. Step 4: Simplify right side
    31,712,695.75x = 370,000,001,061,208.94
  5. Step 5: Solve for x
    x = 370,000,001,061,208.94/31,712,695.75
  6. Step 6: Final answer
    x = 11,667,251.63

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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.