Home / 20,385,379.60-30,578,060.89-7,432,500.31

Finding the Fourth Proportional to 20,385,379.60, 30,578,060.89 and 7,432,500.31

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Solution

The fourth proportional to 20,385,379.60, 30,578,060.89 and 7,432,500.31 is: 11,148,747.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,385,379.60 : 30,578,060.89 = 7,432,500.31 : x
  2. Step 2: Convert to fraction form
    20,385,379.60/30,578,060.89 = 7,432,500.31/x
  3. Step 3: Cross multiply
    20,385,379.60x = 30,578,060.89 × 7,432,500.31
  4. Step 4: Simplify right side
    20,385,379.60x = 227,271,446,967,678.72
  5. Step 5: Solve for x
    x = 227,271,446,967,678.72/20,385,379.60
  6. Step 6: Final answer
    x = 11,148,747.36

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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.