Home / 18,695,943.60-28,043,915.40-5,917,448.40

Finding the Fourth Proportional to 18,695,943.60, 28,043,915.40 and 5,917,448.40

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Solution

The fourth proportional to 18,695,943.60, 28,043,915.40 and 5,917,448.40 is: 8,876,172.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,695,943.60 : 28,043,915.40 = 5,917,448.40 : x
  2. Step 2: Convert to fraction form
    18,695,943.60/28,043,915.40 = 5,917,448.40/x
  3. Step 3: Cross multiply
    18,695,943.60x = 28,043,915.40 × 5,917,448.40
  4. Step 4: Simplify right side
    18,695,943.60x = 165,948,422,313,465.38
  5. Step 5: Solve for x
    x = 165,948,422,313,465.38/18,695,943.60
  6. Step 6: Final answer
    x = 8,876,172.60

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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.