Home / 20,440,068.60-30,660,102.90-15,905,105.40

Finding the Fourth Proportional to 20,440,068.60, 30,660,102.90 and 15,905,105.40

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Solution

The fourth proportional to 20,440,068.60, 30,660,102.90 and 15,905,105.40 is: 23,857,658.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,440,068.60 : 30,660,102.90 = 15,905,105.40 : x
  2. Step 2: Convert to fraction form
    20,440,068.60/30,660,102.90 = 15,905,105.40/x
  3. Step 3: Cross multiply
    20,440,068.60x = 30,660,102.90 × 15,905,105.40
  4. Step 4: Simplify right side
    20,440,068.60x = 487,652,168,199,345.62
  5. Step 5: Solve for x
    x = 487,652,168,199,345.62/20,440,068.60
  6. Step 6: Final answer
    x = 23,857,658.10

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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.