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Finding the Fourth Proportional to 1,791,883,538.56, 2,472,673,012.81 and 998,894,440.90

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Solution

The fourth proportional to 1,791,883,538.56, 2,472,673,012.81 and 998,894,440.90 is: 1,378,403,938.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,791,883,538.56 : 2,472,673,012.81 = 998,894,440.90 : x
  2. Step 2: Convert to fraction form
    1,791,883,538.56/2,472,673,012.81 = 998,894,440.90/x
  3. Step 3: Cross multiply
    1,791,883,538.56x = 2,472,673,012.81 × 998,894,440.90
  4. Step 4: Simplify right side
    1,791,883,538.56x = 2,469,939,326,659,363,328
  5. Step 5: Solve for x
    x = 2,469,939,326,659,363,328/1,791,883,538.56
  6. Step 6: Final answer
    x = 1,378,403,938.37

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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.