Home / 99,090,001.40-148,635,002.10-90,161,792.60

Finding the Fourth Proportional to 99,090,001.40, 148,635,002.10 and 90,161,792.60

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Solution

The fourth proportional to 99,090,001.40, 148,635,002.10 and 90,161,792.60 is: 135,242,688.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,090,001.40 : 148,635,002.10 = 90,161,792.60 : x
  2. Step 2: Convert to fraction form
    99,090,001.40/148,635,002.10 = 90,161,792.60/x
  3. Step 3: Cross multiply
    99,090,001.40x = 148,635,002.10 × 90,161,792.60
  4. Step 4: Simplify right side
    99,090,001.40x = 13,401,198,232,440,764
  5. Step 5: Solve for x
    x = 13,401,198,232,440,764/99,090,001.40
  6. Step 6: Final answer
    x = 135,242,688.90

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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.