Home / 84,437,638.65-126,738,360.86-40,749,143.85

Finding the Fourth Proportional to 84,437,638.65, 126,738,360.86 and 40,749,143.85

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Solution

The fourth proportional to 84,437,638.65, 126,738,360.86 and 40,749,143.85 is: 61,163,241.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,437,638.65 : 126,738,360.86 = 40,749,143.85 : x
  2. Step 2: Convert to fraction form
    84,437,638.65/126,738,360.86 = 40,749,143.85/x
  3. Step 3: Cross multiply
    84,437,638.65x = 126,738,360.86 × 40,749,143.85
  4. Step 4: Simplify right side
    84,437,638.65x = 5,164,479,697,793,604
  5. Step 5: Solve for x
    x = 5,164,479,697,793,604/84,437,638.65
  6. Step 6: Final answer
    x = 61,163,241.66

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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.