Home / 157,402,205.46-217,213,829.84-86,840,789.47

Finding the Fourth Proportional to 157,402,205.46, 217,213,829.84 and 86,840,789.47

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Solution

The fourth proportional to 157,402,205.46, 217,213,829.84 and 86,840,789.47 is: 119,839,619.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,402,205.46 : 217,213,829.84 = 86,840,789.47 : x
  2. Step 2: Convert to fraction form
    157,402,205.46/217,213,829.84 = 86,840,789.47/x
  3. Step 3: Cross multiply
    157,402,205.46x = 217,213,829.84 × 86,840,789.47
  4. Step 4: Simplify right side
    157,402,205.46x = 18,863,020,466,781,912
  5. Step 5: Solve for x
    x = 18,863,020,466,781,912/157,402,205.46
  6. Step 6: Final answer
    x = 119,839,619.86

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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.