Home / 99,072,403.40-148,608,605.10-90,144,194.60

Finding the Fourth Proportional to 99,072,403.40, 148,608,605.10 and 90,144,194.60

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Solution

The fourth proportional to 99,072,403.40, 148,608,605.10 and 90,144,194.60 is: 135,216,291.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,072,403.40 : 148,608,605.10 = 90,144,194.60 : x
  2. Step 2: Convert to fraction form
    99,072,403.40/148,608,605.10 = 90,144,194.60/x
  3. Step 3: Cross multiply
    99,072,403.40x = 148,608,605.10 × 90,144,194.60
  4. Step 4: Simplify right side
    99,072,403.40x = 13,396,203,017,368,952
  5. Step 5: Solve for x
    x = 13,396,203,017,368,952/99,072,403.40
  6. Step 6: Final answer
    x = 135,216,291.90

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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.