Home / 12,591,715.90-18,887,573.85-11,103,681.10

Finding the Fourth Proportional to 12,591,715.90, 18,887,573.85 and 11,103,681.10

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Solution

The fourth proportional to 12,591,715.90, 18,887,573.85 and 11,103,681.10 is: 16,655,521.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,591,715.90 : 18,887,573.85 = 11,103,681.10 : x
  2. Step 2: Convert to fraction form
    12,591,715.90/18,887,573.85 = 11,103,681.10/x
  3. Step 3: Cross multiply
    12,591,715.90x = 18,887,573.85 × 11,103,681.10
  4. Step 4: Simplify right side
    12,591,715.90x = 209,721,596,783,099.25
  5. Step 5: Solve for x
    x = 209,721,596,783,099.25/12,591,715.90
  6. Step 6: Final answer
    x = 16,655,521.65

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Similar ratio
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1.5x scale

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.