Home / 12,947,166.74-17,865,818.06-7,145,573.91

Finding the Fourth Proportional to 12,947,166.74, 17,865,818.06 and 7,145,573.91

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Solution

The fourth proportional to 12,947,166.74, 17,865,818.06 and 7,145,573.91 is: 9,860,189.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,947,166.74 : 17,865,818.06 = 7,145,573.91 : x
  2. Step 2: Convert to fraction form
    12,947,166.74/17,865,818.06 = 7,145,573.91/x
  3. Step 3: Cross multiply
    12,947,166.74x = 17,865,818.06 × 7,145,573.91
  4. Step 4: Simplify right side
    12,947,166.74x = 127,661,523,374,614.95
  5. Step 5: Solve for x
    x = 127,661,523,374,614.95/12,947,166.74
  6. Step 6: Final answer
    x = 9,860,189.95

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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.