Home / 60,678,001.70-91,017,002.55-20,288,485.70

Finding the Fourth Proportional to 60,678,001.70, 91,017,002.55 and 20,288,485.70

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Solution

The fourth proportional to 60,678,001.70, 91,017,002.55 and 20,288,485.70 is: 30,432,728.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,678,001.70 : 91,017,002.55 = 20,288,485.70 : x
  2. Step 2: Convert to fraction form
    60,678,001.70/91,017,002.55 = 20,288,485.70/x
  3. Step 3: Cross multiply
    60,678,001.70x = 91,017,002.55 × 20,288,485.70
  4. Step 4: Simplify right side
    60,678,001.70x = 1,846,597,154,692,538.50
  5. Step 5: Solve for x
    x = 1,846,597,154,692,538.50/60,678,001.70
  6. Step 6: Final answer
    x = 30,432,728.55

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Similar ratio
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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.