Home / 12,119,217.39-16,709,392.85-7,761,138.75

Finding the Fourth Proportional to 12,119,217.39, 16,709,392.85 and 7,761,138.75

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Solution

The fourth proportional to 12,119,217.39, 16,709,392.85 and 7,761,138.75 is: 10,700,684.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,119,217.39 : 16,709,392.85 = 7,761,138.75 : x
  2. Step 2: Convert to fraction form
    12,119,217.39/16,709,392.85 = 7,761,138.75/x
  3. Step 3: Cross multiply
    12,119,217.39x = 16,709,392.85 × 7,761,138.75
  4. Step 4: Simplify right side
    12,119,217.39x = 129,683,916,298,302.25
  5. Step 5: Solve for x
    x = 129,683,916,298,302.25/12,119,217.39
  6. Step 6: Final answer
    x = 10,700,684.06

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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.