Home / 66,455,761.72-99,694,182.30-28,117,561

Finding the Fourth Proportional to 66,455,761.72, 99,694,182.30 and 28,117,561

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Solution

The fourth proportional to 66,455,761.72, 99,694,182.30 and 28,117,561 is: 42,180,800.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,455,761.72 : 99,694,182.30 = 28,117,561 : x
  2. Step 2: Convert to fraction form
    66,455,761.72/99,694,182.30 = 28,117,561/x
  3. Step 3: Cross multiply
    66,455,761.72x = 99,694,182.30 × 28,117,561
  4. Step 4: Simplify right side
    66,455,761.72x = 2,803,157,252,165,370
  5. Step 5: Solve for x
    x = 2,803,157,252,165,370/66,455,761.72
  6. Step 6: Final answer
    x = 42,180,800.88

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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.