Home / 20,347,980.80-30,521,971.20-7,565,840.60

Finding the Fourth Proportional to 20,347,980.80, 30,521,971.20 and 7,565,840.60

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Solution

The fourth proportional to 20,347,980.80, 30,521,971.20 and 7,565,840.60 is: 11,348,760.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,347,980.80 : 30,521,971.20 = 7,565,840.60 : x
  2. Step 2: Convert to fraction form
    20,347,980.80/30,521,971.20 = 7,565,840.60/x
  3. Step 3: Cross multiply
    20,347,980.80x = 30,521,971.20 × 7,565,840.60
  4. Step 4: Simplify right side
    20,347,980.80x = 230,924,368,896,990.69
  5. Step 5: Solve for x
    x = 230,924,368,896,990.69/20,347,980.80
  6. Step 6: Final answer
    x = 11,348,760.90

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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.