Home / 28,026,421.67-42,019,456.06-17,221,397.83

Finding the Fourth Proportional to 28,026,421.67, 42,019,456.06 and 17,221,397.83

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Solution

The fourth proportional to 28,026,421.67, 42,019,456.06 and 17,221,397.83 is: 25,819,698.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,026,421.67 : 42,019,456.06 = 17,221,397.83 : x
  2. Step 2: Convert to fraction form
    28,026,421.67/42,019,456.06 = 17,221,397.83/x
  3. Step 3: Cross multiply
    28,026,421.67x = 42,019,456.06 × 17,221,397.83
  4. Step 4: Simplify right side
    28,026,421.67x = 723,633,769,409,464.38
  5. Step 5: Solve for x
    x = 723,633,769,409,464.38/28,026,421.67
  6. Step 6: Final answer
    x = 25,819,698.92

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.