Home / 805,102,612.40-1,207,228,765.80-344,520,412.40

Finding the Fourth Proportional to 805,102,612.40, 1,207,228,765.80 and 344,520,412.40

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Solution

The fourth proportional to 805,102,612.40, 1,207,228,765.80 and 344,520,412.40 is: 516,598,686.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,102,612.40 : 1,207,228,765.80 = 344,520,412.40 : x
  2. Step 2: Convert to fraction form
    805,102,612.40/1,207,228,765.80 = 344,520,412.40/x
  3. Step 3: Cross multiply
    805,102,612.40x = 1,207,228,765.80 × 344,520,412.40
  4. Step 4: Simplify right side
    805,102,612.40x = 415,914,952,254,558,976
  5. Step 5: Solve for x
    x = 415,914,952,254,558,976/805,102,612.40
  6. Step 6: Final answer
    x = 516,598,686.74

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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.