Home / 126,177,998.40-189,284,712.30-39,907,409.40

Finding the Fourth Proportional to 126,177,998.40, 189,284,712.30 and 39,907,409.40

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Solution

The fourth proportional to 126,177,998.40, 189,284,712.30 and 39,907,409.40 is: 59,866,716.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,177,998.40 : 189,284,712.30 = 39,907,409.40 : x
  2. Step 2: Convert to fraction form
    126,177,998.40/189,284,712.30 = 39,907,409.40/x
  3. Step 3: Cross multiply
    126,177,998.40x = 189,284,712.30 × 39,907,409.40
  4. Step 4: Simplify right side
    126,177,998.40x = 7,553,862,506,917,316
  5. Step 5: Solve for x
    x = 7,553,862,506,917,316/126,177,998.40
  6. Step 6: Final answer
    x = 59,866,716.88

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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.