Home / 485,424,138.30-728,136,207.45-162,308,010.30

Finding the Fourth Proportional to 485,424,138.30, 728,136,207.45 and 162,308,010.30

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Solution

The fourth proportional to 485,424,138.30, 728,136,207.45 and 162,308,010.30 is: 243,462,015.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,424,138.30 : 728,136,207.45 = 162,308,010.30 : x
  2. Step 2: Convert to fraction form
    485,424,138.30/728,136,207.45 = 162,308,010.30/x
  3. Step 3: Cross multiply
    485,424,138.30x = 728,136,207.45 × 162,308,010.30
  4. Step 4: Simplify right side
    485,424,138.30x = 118,182,339,058,597,552
  5. Step 5: Solve for x
    x = 118,182,339,058,597,552/485,424,138.30
  6. Step 6: Final answer
    x = 243,462,015.45

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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.