Home / 126,440,999.40-189,666,747.90-40,176,971.40

Finding the Fourth Proportional to 126,440,999.40, 189,666,747.90 and 40,176,971.40

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Solution

The fourth proportional to 126,440,999.40, 189,666,747.90 and 40,176,971.40 is: 60,267,124.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,440,999.40 : 189,666,747.90 = 40,176,971.40 : x
  2. Step 2: Convert to fraction form
    126,440,999.40/189,666,747.90 = 40,176,971.40/x
  3. Step 3: Cross multiply
    126,440,999.40x = 189,666,747.90 × 40,176,971.40
  4. Step 4: Simplify right side
    126,440,999.40x = 7,620,235,505,909,310
  5. Step 5: Solve for x
    x = 7,620,235,505,909,310/126,440,999.40
  6. Step 6: Final answer
    x = 60,267,124.92

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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.