Home / 1,340,889,672.85-1,850,588,839.11-812,238,147.61

Finding the Fourth Proportional to 1,340,889,672.85, 1,850,588,839.11 and 812,238,147.61

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Solution

The fourth proportional to 1,340,889,672.85, 1,850,588,839.11 and 812,238,147.61 is: 1,120,986,223.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,889,672.85 : 1,850,588,839.11 = 812,238,147.61 : x
  2. Step 2: Convert to fraction form
    1,340,889,672.85/1,850,588,839.11 = 812,238,147.61/x
  3. Step 3: Cross multiply
    1,340,889,672.85x = 1,850,588,839.11 × 812,238,147.61
  4. Step 4: Simplify right side
    1,340,889,672.85x = 1,503,118,850,666,446,592
  5. Step 5: Solve for x
    x = 1,503,118,850,666,446,592/1,340,889,672.85
  6. Step 6: Final answer
    x = 1,120,986,223.63

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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.