Home / 2,447,920,284.22-3,378,141,432.05-1,390,706,268.57

Finding the Fourth Proportional to 2,447,920,284.22, 3,378,141,432.05 and 1,390,706,268.57

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Solution

The fourth proportional to 2,447,920,284.22, 3,378,141,432.05 and 1,390,706,268.57 is: 1,919,181,149.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,447,920,284.22 : 3,378,141,432.05 = 1,390,706,268.57 : x
  2. Step 2: Convert to fraction form
    2,447,920,284.22/3,378,141,432.05 = 1,390,706,268.57/x
  3. Step 3: Cross multiply
    2,447,920,284.22x = 3,378,141,432.05 × 1,390,706,268.57
  4. Step 4: Simplify right side
    2,447,920,284.22x = 4,698,002,465,661,018,112
  5. Step 5: Solve for x
    x = 4,698,002,465,661,018,112/2,447,920,284.22
  6. Step 6: Final answer
    x = 1,919,181,149.79

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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.