Home / 696,040,066.32-960,560,546.51-398,739,767.46

Finding the Fourth Proportional to 696,040,066.32, 960,560,546.51 and 398,739,767.46

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Solution

The fourth proportional to 696,040,066.32, 960,560,546.51 and 398,739,767.46 is: 550,275,346.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,040,066.32 : 960,560,546.51 = 398,739,767.46 : x
  2. Step 2: Convert to fraction form
    696,040,066.32/960,560,546.51 = 398,739,767.46/x
  3. Step 3: Cross multiply
    696,040,066.32x = 960,560,546.51 × 398,739,767.46
  4. Step 4: Simplify right side
    696,040,066.32x = 383,013,688,944,654,208
  5. Step 5: Solve for x
    x = 383,013,688,944,654,208/696,040,066.32
  6. Step 6: Final answer
    x = 550,275,346.89

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1.5x scale

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.