Home / 18,696,167.20-28,046,437.80-5,917,963.60

Finding the Fourth Proportional to 18,696,167.20, 28,046,437.80 and 5,917,963.60

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Solution

The fourth proportional to 18,696,167.20, 28,046,437.80 and 5,917,963.60 is: 8,877,637.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,696,167.20 : 28,046,437.80 = 5,917,963.60 : x
  2. Step 2: Convert to fraction form
    18,696,167.20/28,046,437.80 = 5,917,963.60/x
  3. Step 3: Cross multiply
    18,696,167.20x = 28,046,437.80 × 5,917,963.60
  4. Step 4: Simplify right side
    18,696,167.20x = 165,977,798,010,064.06
  5. Step 5: Solve for x
    x = 165,977,798,010,064.06/18,696,167.20
  6. Step 6: Final answer
    x = 8,877,637.66

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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.