Home / 13,812,495.40-20,720,633.94-4,712,149.66

Finding the Fourth Proportional to 13,812,495.40, 20,720,633.94 and 4,712,149.66

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Solution

The fourth proportional to 13,812,495.40, 20,720,633.94 and 4,712,149.66 is: 7,068,869.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,812,495.40 : 20,720,633.94 = 4,712,149.66 : x
  2. Step 2: Convert to fraction form
    13,812,495.40/20,720,633.94 = 4,712,149.66/x
  3. Step 3: Cross multiply
    13,812,495.40x = 20,720,633.94 × 4,712,149.66
  4. Step 4: Simplify right side
    13,812,495.40x = 97,638,728,175,355.47
  5. Step 5: Solve for x
    x = 97,638,728,175,355.47/13,812,495.40
  6. Step 6: Final answer
    x = 7,068,869.55

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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.