Home / 20,440,066.60-30,660,099.90-15,905,103.40

Finding the Fourth Proportional to 20,440,066.60, 30,660,099.90 and 15,905,103.40

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Solution

The fourth proportional to 20,440,066.60, 30,660,099.90 and 15,905,103.40 is: 23,857,655.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,440,066.60 : 30,660,099.90 = 15,905,103.40 : x
  2. Step 2: Convert to fraction form
    20,440,066.60/30,660,099.90 = 15,905,103.40/x
  3. Step 3: Cross multiply
    20,440,066.60x = 30,660,099.90 × 15,905,103.40
  4. Step 4: Simplify right side
    20,440,066.60x = 487,652,059,163,829.62
  5. Step 5: Solve for x
    x = 487,652,059,163,829.62/20,440,066.60
  6. Step 6: Final answer
    x = 23,857,655.10

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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.