Home / 28,758,711.76-43,138,953.36-12,576,333.28

Finding the Fourth Proportional to 28,758,711.76, 43,138,953.36 and 12,576,333.28

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Solution

The fourth proportional to 28,758,711.76, 43,138,953.36 and 12,576,333.28 is: 18,864,887.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,758,711.76 : 43,138,953.36 = 12,576,333.28 : x
  2. Step 2: Convert to fraction form
    28,758,711.76/43,138,953.36 = 12,576,333.28/x
  3. Step 3: Cross multiply
    28,758,711.76x = 43,138,953.36 × 12,576,333.28
  4. Step 4: Simplify right side
    28,758,711.76x = 542,529,854,805,735.81
  5. Step 5: Solve for x
    x = 542,529,854,805,735.81/28,758,711.76
  6. Step 6: Final answer
    x = 18,864,887.25

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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.