Home / 1,106,643,715.92-1,527,872,655.24-689,568,728.40

Finding the Fourth Proportional to 1,106,643,715.92, 1,527,872,655.24 and 689,568,728.40

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Solution

The fourth proportional to 1,106,643,715.92, 1,527,872,655.24 and 689,568,728.40 is: 952,043,723.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,106,643,715.92 : 1,527,872,655.24 = 689,568,728.40 : x
  2. Step 2: Convert to fraction form
    1,106,643,715.92/1,527,872,655.24 = 689,568,728.40/x
  3. Step 3: Cross multiply
    1,106,643,715.92x = 1,527,872,655.24 × 689,568,728.40
  4. Step 4: Simplify right side
    1,106,643,715.92x = 1,053,573,204,030,978,304
  5. Step 5: Solve for x
    x = 1,053,573,204,030,978,304/1,106,643,715.92
  6. Step 6: Final answer
    x = 952,043,723.63

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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.