Home / 805,102,862.40-1,207,229,140.80-344,520,662.40

Finding the Fourth Proportional to 805,102,862.40, 1,207,229,140.80 and 344,520,662.40

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Solution

The fourth proportional to 805,102,862.40, 1,207,229,140.80 and 344,520,662.40 is: 516,599,061.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,102,862.40 : 1,207,229,140.80 = 344,520,662.40 : x
  2. Step 2: Convert to fraction form
    805,102,862.40/1,207,229,140.80 = 344,520,662.40/x
  3. Step 3: Cross multiply
    805,102,862.40x = 1,207,229,140.80 × 344,520,662.40
  4. Step 4: Simplify right side
    805,102,862.40x = 415,915,383,256,998,848
  5. Step 5: Solve for x
    x = 415,915,383,256,998,848/805,102,862.40
  6. Step 6: Final answer
    x = 516,599,061.66

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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.