Home / 99,090,000.40-148,635,000.60-90,161,791.60

Finding the Fourth Proportional to 99,090,000.40, 148,635,000.60 and 90,161,791.60

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Solution

The fourth proportional to 99,090,000.40, 148,635,000.60 and 90,161,791.60 is: 135,242,687.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,090,000.40 : 148,635,000.60 = 90,161,791.60 : x
  2. Step 2: Convert to fraction form
    99,090,000.40/148,635,000.60 = 90,161,791.60/x
  3. Step 3: Cross multiply
    99,090,000.40x = 148,635,000.60 × 90,161,791.60
  4. Step 4: Simplify right side
    99,090,000.40x = 13,401,197,948,563,074
  5. Step 5: Solve for x
    x = 13,401,197,948,563,074/99,090,000.40
  6. Step 6: Final answer
    x = 135,242,687.40

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1.5x scale

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.