Home / 123,706,378.47-170,704,846.62-71,498,795.61

Finding the Fourth Proportional to 123,706,378.47, 170,704,846.62 and 71,498,795.61

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Solution

The fourth proportional to 123,706,378.47, 170,704,846.62 and 71,498,795.61 is: 98,662,583.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,706,378.47 : 170,704,846.62 = 71,498,795.61 : x
  2. Step 2: Convert to fraction form
    123,706,378.47/170,704,846.62 = 71,498,795.61/x
  3. Step 3: Cross multiply
    123,706,378.47x = 170,704,846.62 × 71,498,795.61
  4. Step 4: Simplify right side
    123,706,378.47x = 12,205,190,938,119,780
  5. Step 5: Solve for x
    x = 12,205,190,938,119,780/123,706,378.47
  6. Step 6: Final answer
    x = 98,662,583.85

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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.