Home / 1,813,431,650.40-2,720,147,475.60-664,425,007.20

Finding the Fourth Proportional to 1,813,431,650.40, 2,720,147,475.60 and 664,425,007.20

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Solution

The fourth proportional to 1,813,431,650.40, 2,720,147,475.60 and 664,425,007.20 is: 996,637,510.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,813,431,650.40 : 2,720,147,475.60 = 664,425,007.20 : x
  2. Step 2: Convert to fraction form
    1,813,431,650.40/2,720,147,475.60 = 664,425,007.20/x
  3. Step 3: Cross multiply
    1,813,431,650.40x = 2,720,147,475.60 × 664,425,007.20
  4. Step 4: Simplify right side
    1,813,431,650.40x = 1,807,334,006,060,591,872
  5. Step 5: Solve for x
    x = 1,807,334,006,060,591,872/1,813,431,650.40
  6. Step 6: Final answer
    x = 996,637,510.80

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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.