Home / 31,107,485.70-42,921,459.90-18,047,180.88

Finding the Fourth Proportional to 31,107,485.70, 42,921,459.90 and 18,047,180.88

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Solution

The fourth proportional to 31,107,485.70, 42,921,459.90 and 18,047,180.88 is: 24,901,123.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,107,485.70 : 42,921,459.90 = 18,047,180.88 : x
  2. Step 2: Convert to fraction form
    31,107,485.70/42,921,459.90 = 18,047,180.88/x
  3. Step 3: Cross multiply
    31,107,485.70x = 42,921,459.90 × 18,047,180.88
  4. Step 4: Simplify right side
    31,107,485.70x = 774,611,350,448,966.62
  5. Step 5: Solve for x
    x = 774,611,350,448,966.62/31,107,485.70
  6. Step 6: Final answer
    x = 24,901,123.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.