Home / 12,913,360.20-17,820,550.80-7,112,342.70

Finding the Fourth Proportional to 12,913,360.20, 17,820,550.80 and 7,112,342.70

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Solution

The fourth proportional to 12,913,360.20, 17,820,550.80 and 7,112,342.70 is: 9,815,095.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,913,360.20 : 17,820,550.80 = 7,112,342.70 : x
  2. Step 2: Convert to fraction form
    12,913,360.20/17,820,550.80 = 7,112,342.70/x
  3. Step 3: Cross multiply
    12,913,360.20x = 17,820,550.80 × 7,112,342.70
  4. Step 4: Simplify right side
    12,913,360.20x = 126,745,864,392,359.17
  5. Step 5: Solve for x
    x = 126,745,864,392,359.17/12,913,360.20
  6. Step 6: Final answer
    x = 9,815,095.56

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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.