Home / 12,920,616.90-17,831,245.59-7,119,397.13

Finding the Fourth Proportional to 12,920,616.90, 17,831,245.59 and 7,119,397.13

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Solution

The fourth proportional to 12,920,616.90, 17,831,245.59 and 7,119,397.13 is: 9,825,205.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,920,616.90 : 17,831,245.59 = 7,119,397.13 : x
  2. Step 2: Convert to fraction form
    12,920,616.90/17,831,245.59 = 7,119,397.13/x
  3. Step 3: Cross multiply
    12,920,616.90x = 17,831,245.59 × 7,119,397.13
  4. Step 4: Simplify right side
    12,920,616.90x = 126,947,718,588,614.92
  5. Step 5: Solve for x
    x = 126,947,718,588,614.92/12,920,616.90
  6. Step 6: Final answer
    x = 9,825,205.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.