Home / 12,718,214.61-17,550,803.52-7,420,922.66

Finding the Fourth Proportional to 12,718,214.61, 17,550,803.52 and 7,420,922.66

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Solution

The fourth proportional to 12,718,214.61, 17,550,803.52 and 7,420,922.66 is: 10,240,679.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,718,214.61 : 17,550,803.52 = 7,420,922.66 : x
  2. Step 2: Convert to fraction form
    12,718,214.61/17,550,803.52 = 7,420,922.66/x
  3. Step 3: Cross multiply
    12,718,214.61x = 17,550,803.52 × 7,420,922.66
  4. Step 4: Simplify right side
    12,718,214.61x = 130,243,155,542,775.77
  5. Step 5: Solve for x
    x = 130,243,155,542,775.77/12,718,214.61
  6. Step 6: Final answer
    x = 10,240,679.18

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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.