Home / 14,652,487.19-20,221,674.45-8,128,218.76

Finding the Fourth Proportional to 14,652,487.19, 20,221,674.45 and 8,128,218.76

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Solution

The fourth proportional to 14,652,487.19, 20,221,674.45 and 8,128,218.76 is: 11,217,630.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,652,487.19 : 20,221,674.45 = 8,128,218.76 : x
  2. Step 2: Convert to fraction form
    14,652,487.19/20,221,674.45 = 8,128,218.76/x
  3. Step 3: Cross multiply
    14,652,487.19x = 20,221,674.45 × 8,128,218.76
  4. Step 4: Simplify right side
    14,652,487.19x = 164,366,193,623,102.66
  5. Step 5: Solve for x
    x = 164,366,193,623,102.66/14,652,487.19
  6. Step 6: Final answer
    x = 11,217,630.94

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Double scale
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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.