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Finding the Fourth Proportional to 912,384,002.60, 1,368,576,003.90 and 880,135,375.40

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Solution

The fourth proportional to 912,384,002.60, 1,368,576,003.90 and 880,135,375.40 is: 1,320,203,063.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,384,002.60 : 1,368,576,003.90 = 880,135,375.40 : x
  2. Step 2: Convert to fraction form
    912,384,002.60/1,368,576,003.90 = 880,135,375.40/x
  3. Step 3: Cross multiply
    912,384,002.60x = 1,368,576,003.90 × 880,135,375.40
  4. Step 4: Simplify right side
    912,384,002.60x = 1,204,532,154,955,958,528
  5. Step 5: Solve for x
    x = 1,204,532,154,955,958,528/912,384,002.60
  6. Step 6: Final answer
    x = 1,320,203,063.10

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1.5x scale

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.