Home / 155,382,676.71-214,428,114.86-85,768,070.73

Finding the Fourth Proportional to 155,382,676.71, 214,428,114.86 and 85,768,070.73

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Solution

The fourth proportional to 155,382,676.71, 214,428,114.86 and 85,768,070.73 is: 118,359,949.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,382,676.71 : 214,428,114.86 = 85,768,070.73 : x
  2. Step 2: Convert to fraction form
    155,382,676.71/214,428,114.86 = 85,768,070.73/x
  3. Step 3: Cross multiply
    155,382,676.71x = 214,428,114.86 × 85,768,070.73
  4. Step 4: Simplify right side
    155,382,676.71x = 18,391,085,721,384,204
  5. Step 5: Solve for x
    x = 18,391,085,721,384,204/155,382,676.71
  6. Step 6: Final answer
    x = 118,359,949.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.