Home / 589,565,568.12-813,454,217.64-388,600,170.36

Finding the Fourth Proportional to 589,565,568.12, 813,454,217.64 and 388,600,170.36

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Solution

The fourth proportional to 589,565,568.12, 813,454,217.64 and 388,600,170.36 is: 536,171,826.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,565,568.12 : 813,454,217.64 = 388,600,170.36 : x
  2. Step 2: Convert to fraction form
    589,565,568.12/813,454,217.64 = 388,600,170.36/x
  3. Step 3: Cross multiply
    589,565,568.12x = 813,454,217.64 × 388,600,170.36
  4. Step 4: Simplify right side
    589,565,568.12x = 316,108,447,554,964,544
  5. Step 5: Solve for x
    x = 316,108,447,554,964,544/589,565,568.12
  6. Step 6: Final answer
    x = 536,171,826.59

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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.