Home / 121,761,690.15-182,668,378.28-39,874,519.83

Finding the Fourth Proportional to 121,761,690.15, 182,668,378.28 and 39,874,519.83

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Solution

The fourth proportional to 121,761,690.15, 182,668,378.28 and 39,874,519.83 is: 59,820,242.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,761,690.15 : 182,668,378.28 = 39,874,519.83 : x
  2. Step 2: Convert to fraction form
    121,761,690.15/182,668,378.28 = 39,874,519.83/x
  3. Step 3: Cross multiply
    121,761,690.15x = 182,668,378.28 × 39,874,519.83
  4. Step 4: Simplify right side
    121,761,690.15x = 7,283,813,871,840,429
  5. Step 5: Solve for x
    x = 7,283,813,871,840,429/121,761,690.15
  6. Step 6: Final answer
    x = 59,820,242.83

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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.