Home / 79,249,101.85-118,885,464.33-28,126,839.61

Finding the Fourth Proportional to 79,249,101.85, 118,885,464.33 and 28,126,839.61

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Solution

The fourth proportional to 79,249,101.85, 118,885,464.33 and 28,126,839.61 is: 42,194,451.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,249,101.85 : 118,885,464.33 = 28,126,839.61 : x
  2. Step 2: Convert to fraction form
    79,249,101.85/118,885,464.33 = 28,126,839.61/x
  3. Step 3: Cross multiply
    79,249,101.85x = 118,885,464.33 × 28,126,839.61
  4. Step 4: Simplify right side
    79,249,101.85x = 3,343,872,387,170,286
  5. Step 5: Solve for x
    x = 3,343,872,387,170,286/79,249,101.85
  6. Step 6: Final answer
    x = 42,194,451.53

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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.