Home / 243,047,311.68-364,570,138.08-99,440,143.68

Finding the Fourth Proportional to 243,047,311.68, 364,570,138.08 and 99,440,143.68

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Solution

The fourth proportional to 243,047,311.68, 364,570,138.08 and 99,440,143.68 is: 149,159,876.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,047,311.68 : 364,570,138.08 = 99,440,143.68 : x
  2. Step 2: Convert to fraction form
    243,047,311.68/364,570,138.08 = 99,440,143.68/x
  3. Step 3: Cross multiply
    243,047,311.68x = 364,570,138.08 × 99,440,143.68
  4. Step 4: Simplify right side
    243,047,311.68x = 36,252,906,912,112,640
  5. Step 5: Solve for x
    x = 36,252,906,912,112,640/243,047,311.68
  6. Step 6: Final answer
    x = 149,159,876.16

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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.