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Finding the Fourth Proportional to 198,775,978.57, 298,196,292.66 and 58,730,646.25

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Solution

The fourth proportional to 198,775,978.57, 298,196,292.66 and 58,730,646.25 is: 88,105,520.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,775,978.57 : 298,196,292.66 = 58,730,646.25 : x
  2. Step 2: Convert to fraction form
    198,775,978.57/298,196,292.66 = 58,730,646.25/x
  3. Step 3: Cross multiply
    198,775,978.57x = 298,196,292.66 × 58,730,646.25
  4. Step 4: Simplify right side
    198,775,978.57x = 17,513,260,977,275,934
  5. Step 5: Solve for x
    x = 17,513,260,977,275,934/198,775,978.57
  6. Step 6: Final answer
    x = 88,105,520.11

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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.