Home / 28,198,905.60-42,298,358.40-18,625,094.40

Finding the Fourth Proportional to 28,198,905.60, 42,298,358.40 and 18,625,094.40

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Solution

The fourth proportional to 28,198,905.60, 42,298,358.40 and 18,625,094.40 is: 27,937,641.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,198,905.60 : 42,298,358.40 = 18,625,094.40 : x
  2. Step 2: Convert to fraction form
    28,198,905.60/42,298,358.40 = 18,625,094.40/x
  3. Step 3: Cross multiply
    28,198,905.60x = 42,298,358.40 × 18,625,094.40
  4. Step 4: Simplify right side
    28,198,905.60x = 787,810,918,165,032.88
  5. Step 5: Solve for x
    x = 787,810,918,165,032.88/28,198,905.60
  6. Step 6: Final answer
    x = 27,937,641.60

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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.