Home / 13,812,494.66-20,720,632.82-4,712,148.90

Finding the Fourth Proportional to 13,812,494.66, 20,720,632.82 and 4,712,148.90

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Solution

The fourth proportional to 13,812,494.66, 20,720,632.82 and 4,712,148.90 is: 7,068,868.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,812,494.66 : 20,720,632.82 = 4,712,148.90 : x
  2. Step 2: Convert to fraction form
    13,812,494.66/20,720,632.82 = 4,712,148.90/x
  3. Step 3: Cross multiply
    13,812,494.66x = 20,720,632.82 × 4,712,148.90
  4. Step 4: Simplify right side
    13,812,494.66x = 97,638,707,126,506.17
  5. Step 5: Solve for x
    x = 97,638,707,126,506.17/13,812,494.66
  6. Step 6: Final answer
    x = 7,068,868.41

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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.