Home / 20,910,565.98-31,353,670.10-8,116,123.90

Finding the Fourth Proportional to 20,910,565.98, 31,353,670.10 and 8,116,123.90

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Solution

The fourth proportional to 20,910,565.98, 31,353,670.10 and 8,116,123.90 is: 12,169,458.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,910,565.98 : 31,353,670.10 = 8,116,123.90 : x
  2. Step 2: Convert to fraction form
    20,910,565.98/31,353,670.10 = 8,116,123.90/x
  3. Step 3: Cross multiply
    20,910,565.98x = 31,353,670.10 × 8,116,123.90
  4. Step 4: Simplify right side
    20,910,565.98x = 254,470,271,251,325.41
  5. Step 5: Solve for x
    x = 254,470,271,251,325.41/20,910,565.98
  6. Step 6: Final answer
    x = 12,169,458.80

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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.