Home / 99,816,084.60-149,724,126.90-85,203,425.40

Finding the Fourth Proportional to 99,816,084.60, 149,724,126.90 and 85,203,425.40

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Solution

The fourth proportional to 99,816,084.60, 149,724,126.90 and 85,203,425.40 is: 127,805,138.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,816,084.60 : 149,724,126.90 = 85,203,425.40 : x
  2. Step 2: Convert to fraction form
    99,816,084.60/149,724,126.90 = 85,203,425.40/x
  3. Step 3: Cross multiply
    99,816,084.60x = 149,724,126.90 × 85,203,425.40
  4. Step 4: Simplify right side
    99,816,084.60x = 12,757,008,476,904,284
  5. Step 5: Solve for x
    x = 12,757,008,476,904,284/99,816,084.60
  6. Step 6: Final answer
    x = 127,805,138.10

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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.