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Finding the Fourth Proportional to 1,008,002,877.20, 1,510,809,922.20 and 425,735,997.20

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Solution

The fourth proportional to 1,008,002,877.20, 1,510,809,922.20 and 425,735,997.20 is: 638,099,536.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,002,877.20 : 1,510,809,922.20 = 425,735,997.20 : x
  2. Step 2: Convert to fraction form
    1,008,002,877.20/1,510,809,922.20 = 425,735,997.20/x
  3. Step 3: Cross multiply
    1,008,002,877.20x = 1,510,809,922.20 × 425,735,997.20
  4. Step 4: Simplify right side
    1,008,002,877.20x = 643,206,168,807,471,360
  5. Step 5: Solve for x
    x = 643,206,168,807,471,360/1,008,002,877.20
  6. Step 6: Final answer
    x = 638,099,536.57

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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.