Home / 20,803,417.92-28,706,201.35-11,985,753.87

Finding the Fourth Proportional to 20,803,417.92, 28,706,201.35 and 11,985,753.87

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Solution

The fourth proportional to 20,803,417.92, 28,706,201.35 and 11,985,753.87 is: 16,538,891.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,803,417.92 : 28,706,201.35 = 11,985,753.87 : x
  2. Step 2: Convert to fraction form
    20,803,417.92/28,706,201.35 = 11,985,753.87/x
  3. Step 3: Cross multiply
    20,803,417.92x = 28,706,201.35 × 11,985,753.87
  4. Step 4: Simplify right side
    20,803,417.92x = 344,065,463,893,797.31
  5. Step 5: Solve for x
    x = 344,065,463,893,797.31/20,803,417.92
  6. Step 6: Final answer
    x = 16,538,891.12

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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.