Home / 79,263,005.70-118,894,508.55-71,610,255.30

Finding the Fourth Proportional to 79,263,005.70, 118,894,508.55 and 71,610,255.30

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Solution

The fourth proportional to 79,263,005.70, 118,894,508.55 and 71,610,255.30 is: 107,415,382.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,263,005.70 : 118,894,508.55 = 71,610,255.30 : x
  2. Step 2: Convert to fraction form
    79,263,005.70/118,894,508.55 = 71,610,255.30/x
  3. Step 3: Cross multiply
    79,263,005.70x = 118,894,508.55 × 71,610,255.30
  4. Step 4: Simplify right side
    79,263,005.70x = 8,514,066,111,033,532
  5. Step 5: Solve for x
    x = 8,514,066,111,033,532/79,263,005.70
  6. Step 6: Final answer
    x = 107,415,382.95

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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.