Home / 144,367,062.79-199,226,599.80-78,287,543.74

Finding the Fourth Proportional to 144,367,062.79, 199,226,599.80 and 78,287,543.74

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Solution

The fourth proportional to 144,367,062.79, 199,226,599.80 and 78,287,543.74 is: 108,036,839.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,367,062.79 : 199,226,599.80 = 78,287,543.74 : x
  2. Step 2: Convert to fraction form
    144,367,062.79/199,226,599.80 = 78,287,543.74/x
  3. Step 3: Cross multiply
    144,367,062.79x = 199,226,599.80 × 78,287,543.74
  4. Step 4: Simplify right side
    144,367,062.79x = 15,596,961,145,290,320
  5. Step 5: Solve for x
    x = 15,596,961,145,290,320/144,367,062.79
  6. Step 6: Final answer
    x = 108,036,839.18

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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.