Home / 21,304,316.70-31,956,475.05-20,454,011.10

Finding the Fourth Proportional to 21,304,316.70, 31,956,475.05 and 20,454,011.10

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Solution

The fourth proportional to 21,304,316.70, 31,956,475.05 and 20,454,011.10 is: 30,681,016.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,304,316.70 : 31,956,475.05 = 20,454,011.10 : x
  2. Step 2: Convert to fraction form
    21,304,316.70/31,956,475.05 = 20,454,011.10/x
  3. Step 3: Cross multiply
    21,304,316.70x = 31,956,475.05 × 20,454,011.10
  4. Step 4: Simplify right side
    21,304,316.70x = 653,638,095,389,573.12
  5. Step 5: Solve for x
    x = 653,638,095,389,573.12/21,304,316.70
  6. Step 6: Final answer
    x = 30,681,016.65

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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.