Home / 20,654,853.40-30,982,280.10-7,191,681.40

Finding the Fourth Proportional to 20,654,853.40, 30,982,280.10 and 7,191,681.40

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Solution

The fourth proportional to 20,654,853.40, 30,982,280.10 and 7,191,681.40 is: 10,787,522.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,654,853.40 : 30,982,280.10 = 7,191,681.40 : x
  2. Step 2: Convert to fraction form
    20,654,853.40/30,982,280.10 = 7,191,681.40/x
  3. Step 3: Cross multiply
    20,654,853.40x = 30,982,280.10 × 7,191,681.40
  4. Step 4: Simplify right side
    20,654,853.40x = 222,814,687,524,760.16
  5. Step 5: Solve for x
    x = 222,814,687,524,760.16/20,654,853.40
  6. Step 6: Final answer
    x = 10,787,522.10

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1.5x scale

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.