Home / 21,154,475.80-31,731,713.70-5,198,123.80

Finding the Fourth Proportional to 21,154,475.80, 31,731,713.70 and 5,198,123.80

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Solution

The fourth proportional to 21,154,475.80, 31,731,713.70 and 5,198,123.80 is: 7,797,185.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,154,475.80 : 31,731,713.70 = 5,198,123.80 : x
  2. Step 2: Convert to fraction form
    21,154,475.80/31,731,713.70 = 5,198,123.80/x
  3. Step 3: Cross multiply
    21,154,475.80x = 31,731,713.70 × 5,198,123.80
  4. Step 4: Simplify right side
    21,154,475.80x = 164,945,376,198,756.06
  5. Step 5: Solve for x
    x = 164,945,376,198,756.06/21,154,475.80
  6. Step 6: Final answer
    x = 7,797,185.70

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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.