Home / 12,479,823.68-17,205,502.40-9,910,011.20

Finding the Fourth Proportional to 12,479,823.68, 17,205,502.40 and 9,910,011.20

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Solution

The fourth proportional to 12,479,823.68, 17,205,502.40 and 9,910,011.20 is: 13,662,590.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,479,823.68 : 17,205,502.40 = 9,910,011.20 : x
  2. Step 2: Convert to fraction form
    12,479,823.68/17,205,502.40 = 9,910,011.20/x
  3. Step 3: Cross multiply
    12,479,823.68x = 17,205,502.40 × 9,910,011.20
  4. Step 4: Simplify right side
    12,479,823.68x = 170,506,721,485,626.84
  5. Step 5: Solve for x
    x = 170,506,721,485,626.84/12,479,823.68
  6. Step 6: Final answer
    x = 13,662,590.58

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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.