Home / 412,231,507.66-618,346,867.83-105,523,128.46

Finding the Fourth Proportional to 412,231,507.66, 618,346,867.83 and 105,523,128.46

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Solution

The fourth proportional to 412,231,507.66, 618,346,867.83 and 105,523,128.46 is: 158,284,591.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,231,507.66 : 618,346,867.83 = 105,523,128.46 : x
  2. Step 2: Convert to fraction form
    412,231,507.66/618,346,867.83 = 105,523,128.46/x
  3. Step 3: Cross multiply
    412,231,507.66x = 618,346,867.83 × 105,523,128.46
  4. Step 4: Simplify right side
    412,231,507.66x = 65,249,895,966,863,728
  5. Step 5: Solve for x
    x = 65,249,895,966,863,728/412,231,507.66
  6. Step 6: Final answer
    x = 158,284,591.92

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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.