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Finding the Fourth Proportional to 60,677,999.70, 91,016,999.55 and 20,288,483.70

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Solution

The fourth proportional to 60,677,999.70, 91,016,999.55 and 20,288,483.70 is: 30,432,725.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,677,999.70 : 91,016,999.55 = 20,288,483.70 : x
  2. Step 2: Convert to fraction form
    60,677,999.70/91,016,999.55 = 20,288,483.70/x
  3. Step 3: Cross multiply
    60,677,999.70x = 91,016,999.55 × 20,288,483.70
  4. Step 4: Simplify right side
    60,677,999.70x = 1,846,596,911,793,082.25
  5. Step 5: Solve for x
    x = 1,846,596,911,793,082.25/60,677,999.70
  6. Step 6: Final answer
    x = 30,432,725.55

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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.