Home / 509,315,401.02-763,972,147.92-159,588,242.30

Finding the Fourth Proportional to 509,315,401.02, 763,972,147.92 and 159,588,242.30

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Solution

The fourth proportional to 509,315,401.02, 763,972,147.92 and 159,588,242.30 is: 239,382,064.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,315,401.02 : 763,972,147.92 = 159,588,242.30 : x
  2. Step 2: Convert to fraction form
    509,315,401.02/763,972,147.92 = 159,588,242.30/x
  3. Step 3: Cross multiply
    509,315,401.02x = 763,972,147.92 × 159,588,242.30
  4. Step 4: Simplify right side
    509,315,401.02x = 121,920,972,252,708,400
  5. Step 5: Solve for x
    x = 121,920,972,252,708,400/509,315,401.02
  6. Step 6: Final answer
    x = 239,382,064.65

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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.