Home / 853,011,667.13-1,279,517,500.71-206,779,411.13

Finding the Fourth Proportional to 853,011,667.13, 1,279,517,500.71 and 206,779,411.13

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Solution

The fourth proportional to 853,011,667.13, 1,279,517,500.71 and 206,779,411.13 is: 310,169,116.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,011,667.13 : 1,279,517,500.71 = 206,779,411.13 : x
  2. Step 2: Convert to fraction form
    853,011,667.13/1,279,517,500.71 = 206,779,411.13/x
  3. Step 3: Cross multiply
    853,011,667.13x = 1,279,517,500.71 × 206,779,411.13
  4. Step 4: Simplify right side
    853,011,667.13x = 264,577,875,320,945,568
  5. Step 5: Solve for x
    x = 264,577,875,320,945,568/853,011,667.13
  6. Step 6: Final answer
    x = 310,169,116.69

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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.