Home / 1,918,168,846.47-2,647,045,066.79-1,071,408,217.95

Finding the Fourth Proportional to 1,918,168,846.47, 2,647,045,066.79 and 1,071,408,217.95

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Solution

The fourth proportional to 1,918,168,846.47, 2,647,045,066.79 and 1,071,408,217.95 is: 1,478,527,733.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,918,168,846.47 : 2,647,045,066.79 = 1,071,408,217.95 : x
  2. Step 2: Convert to fraction form
    1,918,168,846.47/2,647,045,066.79 = 1,071,408,217.95/x
  3. Step 3: Cross multiply
    1,918,168,846.47x = 2,647,045,066.79 × 1,071,408,217.95
  4. Step 4: Simplify right side
    1,918,168,846.47x = 2,836,065,837,845,491,200
  5. Step 5: Solve for x
    x = 2,836,065,837,845,491,200/1,918,168,846.47
  6. Step 6: Final answer
    x = 1,478,527,733.92

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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.