Home / 31,508,123.40-47,167,706.70-18,722,046.60

Finding the Fourth Proportional to 31,508,123.40, 47,167,706.70 and 18,722,046.60

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Solution

The fourth proportional to 31,508,123.40, 47,167,706.70 and 18,722,046.60 is: 28,026,931.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,508,123.40 : 47,167,706.70 = 18,722,046.60 : x
  2. Step 2: Convert to fraction form
    31,508,123.40/47,167,706.70 = 18,722,046.60/x
  3. Step 3: Cross multiply
    31,508,123.40x = 47,167,706.70 × 18,722,046.60
  4. Step 4: Simplify right side
    31,508,123.40x = 883,076,002,852,532.38
  5. Step 5: Solve for x
    x = 883,076,002,852,532.38/31,508,123.40
  6. Step 6: Final answer
    x = 28,026,931.08

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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.