Home / 12,118,591.28-16,718,020.08-7,221,065.60

Finding the Fourth Proportional to 12,118,591.28, 16,718,020.08 and 7,221,065.60

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Solution

The fourth proportional to 12,118,591.28, 16,718,020.08 and 7,221,065.60 is: 9,961,712.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,118,591.28 : 16,718,020.08 = 7,221,065.60 : x
  2. Step 2: Convert to fraction form
    12,118,591.28/16,718,020.08 = 7,221,065.60/x
  3. Step 3: Cross multiply
    12,118,591.28x = 16,718,020.08 × 7,221,065.60
  4. Step 4: Simplify right side
    12,118,591.28x = 120,721,919,699,797.25
  5. Step 5: Solve for x
    x = 120,721,919,699,797.25/12,118,591.28
  6. Step 6: Final answer
    x = 9,961,712.29

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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.