Home / 126,177,845.40-189,284,482.80-39,907,256.40

Finding the Fourth Proportional to 126,177,845.40, 189,284,482.80 and 39,907,256.40

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Solution

The fourth proportional to 126,177,845.40, 189,284,482.80 and 39,907,256.40 is: 59,866,487.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,177,845.40 : 189,284,482.80 = 39,907,256.40 : x
  2. Step 2: Convert to fraction form
    126,177,845.40/189,284,482.80 = 39,907,256.40/x
  3. Step 3: Cross multiply
    126,177,845.40x = 189,284,482.80 × 39,907,256.40
  4. Step 4: Simplify right side
    126,177,845.40x = 7,553,824,387,640,990
  5. Step 5: Solve for x
    x = 7,553,824,387,640,990/126,177,845.40
  6. Step 6: Final answer
    x = 59,866,487.37

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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.