Home / 166,853,999.70-250,280,999.55-138,510,479.70

Finding the Fourth Proportional to 166,853,999.70, 250,280,999.55 and 138,510,479.70

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Solution

The fourth proportional to 166,853,999.70, 250,280,999.55 and 138,510,479.70 is: 207,765,719.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,853,999.70 : 250,280,999.55 = 138,510,479.70 : x
  2. Step 2: Convert to fraction form
    166,853,999.70/250,280,999.55 = 138,510,479.70/x
  3. Step 3: Cross multiply
    166,853,999.70x = 250,280,999.55 × 138,510,479.70
  4. Step 4: Simplify right side
    166,853,999.70x = 34,666,541,307,465,984
  5. Step 5: Solve for x
    x = 34,666,541,307,465,984/166,853,999.70
  6. Step 6: Final answer
    x = 207,765,719.55

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1.5x scale

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.