Home / 258,047,849.20-356,105,874.90-142,154,345.20

Finding the Fourth Proportional to 258,047,849.20, 356,105,874.90 and 142,154,345.20

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Solution

The fourth proportional to 258,047,849.20, 356,105,874.90 and 142,154,345.20 is: 196,172,909.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,047,849.20 : 356,105,874.90 = 142,154,345.20 : x
  2. Step 2: Convert to fraction form
    258,047,849.20/356,105,874.90 = 142,154,345.20/x
  3. Step 3: Cross multiply
    258,047,849.20x = 356,105,874.90 × 142,154,345.20
  4. Step 4: Simplify right side
    258,047,849.20x = 50,621,997,468,282,608
  5. Step 5: Solve for x
    x = 50,621,997,468,282,608/258,047,849.20
  6. Step 6: Final answer
    x = 196,172,909.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.