Home / 31,552,237.80-47,328,356.70-20,781,700.20

Finding the Fourth Proportional to 31,552,237.80, 47,328,356.70 and 20,781,700.20

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Solution

The fourth proportional to 31,552,237.80, 47,328,356.70 and 20,781,700.20 is: 31,172,550.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,552,237.80 : 47,328,356.70 = 20,781,700.20 : x
  2. Step 2: Convert to fraction form
    31,552,237.80/47,328,356.70 = 20,781,700.20/x
  3. Step 3: Cross multiply
    31,552,237.80x = 47,328,356.70 × 20,781,700.20
  4. Step 4: Simplify right side
    31,552,237.80x = 983,563,719,898,061.38
  5. Step 5: Solve for x
    x = 983,563,719,898,061.38/31,552,237.80
  6. Step 6: Final answer
    x = 31,172,550.30

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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.