Home / 20,776,502.70-31,164,754.05-9,261,947.70

Finding the Fourth Proportional to 20,776,502.70, 31,164,754.05 and 9,261,947.70

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Solution

The fourth proportional to 20,776,502.70, 31,164,754.05 and 9,261,947.70 is: 13,892,921.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,776,502.70 : 31,164,754.05 = 9,261,947.70 : x
  2. Step 2: Convert to fraction form
    20,776,502.70/31,164,754.05 = 9,261,947.70/x
  3. Step 3: Cross multiply
    20,776,502.70x = 31,164,754.05 × 9,261,947.70
  4. Step 4: Simplify right side
    20,776,502.70x = 288,646,322,094,463.19
  5. Step 5: Solve for x
    x = 288,646,322,094,463.19/20,776,502.70
  6. Step 6: Final answer
    x = 13,892,921.55

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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.