Home / 12,119,205.38-16,709,376.28-7,761,126.74

Finding the Fourth Proportional to 12,119,205.38, 16,709,376.28 and 7,761,126.74

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Solution

The fourth proportional to 12,119,205.38, 16,709,376.28 and 7,761,126.74 is: 10,700,667.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,119,205.38 : 16,709,376.28 = 7,761,126.74 : x
  2. Step 2: Convert to fraction form
    12,119,205.38/16,709,376.28 = 7,761,126.74/x
  3. Step 3: Cross multiply
    12,119,205.38x = 16,709,376.28 × 7,761,126.74
  4. Step 4: Simplify right side
    12,119,205.38x = 129,683,587,055,429.72
  5. Step 5: Solve for x
    x = 129,683,587,055,429.72/12,119,205.38
  6. Step 6: Final answer
    x = 10,700,667.49

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1.5x scale

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.