Home / 1,679,778,007.20-2,519,667,010.80-1,332,853,322.40

Finding the Fourth Proportional to 1,679,778,007.20, 2,519,667,010.80 and 1,332,853,322.40

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Solution

The fourth proportional to 1,679,778,007.20, 2,519,667,010.80 and 1,332,853,322.40 is: 1,999,279,983.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,679,778,007.20 : 2,519,667,010.80 = 1,332,853,322.40 : x
  2. Step 2: Convert to fraction form
    1,679,778,007.20/2,519,667,010.80 = 1,332,853,322.40/x
  3. Step 3: Cross multiply
    1,679,778,007.20x = 2,519,667,010.80 × 1,332,853,322.40
  4. Step 4: Simplify right side
    1,679,778,007.20x = 3,358,346,546,686,457,344
  5. Step 5: Solve for x
    x = 3,358,346,546,686,457,344/1,679,778,007.20
  6. Step 6: Final answer
    x = 1,999,279,983.60

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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.