Home / 801,459,342.80-1,203,084,809.40-620,508,712.40

Finding the Fourth Proportional to 801,459,342.80, 1,203,084,809.40 and 620,508,712.40

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Solution

The fourth proportional to 801,459,342.80, 1,203,084,809.40 and 620,508,712.40 is: 931,456,614.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    801,459,342.80 : 1,203,084,809.40 = 620,508,712.40 : x
  2. Step 2: Convert to fraction form
    801,459,342.80/1,203,084,809.40 = 620,508,712.40/x
  3. Step 3: Cross multiply
    801,459,342.80x = 1,203,084,809.40 × 620,508,712.40
  4. Step 4: Simplify right side
    801,459,342.80x = 746,524,605,988,793,472
  5. Step 5: Solve for x
    x = 746,524,605,988,793,472/801,459,342.80
  6. Step 6: Final answer
    x = 931,456,614.36

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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.