Home / 79,249,121.85-118,885,494.33-28,126,859.61

Finding the Fourth Proportional to 79,249,121.85, 118,885,494.33 and 28,126,859.61

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Solution

The fourth proportional to 79,249,121.85, 118,885,494.33 and 28,126,859.61 is: 42,194,481.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,249,121.85 : 118,885,494.33 = 28,126,859.61 : x
  2. Step 2: Convert to fraction form
    79,249,121.85/118,885,494.33 = 28,126,859.61/x
  3. Step 3: Cross multiply
    79,249,121.85x = 118,885,494.33 × 28,126,859.61
  4. Step 4: Simplify right side
    79,249,121.85x = 3,343,875,608,685,361
  5. Step 5: Solve for x
    x = 3,343,875,608,685,361/79,249,121.85
  6. Step 6: Final answer
    x = 42,194,481.54

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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.