Home / 20,486,634.17-30,674,885.04-15,605,689.36

Finding the Fourth Proportional to 20,486,634.17, 30,674,885.04 and 15,605,689.36

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Solution

The fourth proportional to 20,486,634.17, 30,674,885.04 and 15,605,689.36 is: 23,366,587.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,486,634.17 : 30,674,885.04 = 15,605,689.36 : x
  2. Step 2: Convert to fraction form
    20,486,634.17/30,674,885.04 = 15,605,689.36/x
  3. Step 3: Cross multiply
    20,486,634.17x = 30,674,885.04 × 15,605,689.36
  4. Step 4: Simplify right side
    20,486,634.17x = 478,702,726,934,576.75
  5. Step 5: Solve for x
    x = 478,702,726,934,576.75/20,486,634.17
  6. Step 6: Final answer
    x = 23,366,587.35

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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.