Home / 65,370,476.92-90,221,065.50-49,663,654.78

Finding the Fourth Proportional to 65,370,476.92, 90,221,065.50 and 49,663,654.78

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Solution

The fourth proportional to 65,370,476.92, 90,221,065.50 and 49,663,654.78 is: 68,543,294.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,370,476.92 : 90,221,065.50 = 49,663,654.78 : x
  2. Step 2: Convert to fraction form
    65,370,476.92/90,221,065.50 = 49,663,654.78/x
  3. Step 3: Cross multiply
    65,370,476.92x = 90,221,065.50 × 49,663,654.78
  4. Step 4: Simplify right side
    65,370,476.92x = 4,480,707,850,875,768
  5. Step 5: Solve for x
    x = 4,480,707,850,875,768/65,370,476.92
  6. Step 6: Final answer
    x = 68,543,294.50

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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.