Home / 28,174,561.60-42,261,842.40-7,979,803.60

Finding the Fourth Proportional to 28,174,561.60, 42,261,842.40 and 7,979,803.60

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Solution

The fourth proportional to 28,174,561.60, 42,261,842.40 and 7,979,803.60 is: 11,969,705.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,174,561.60 : 42,261,842.40 = 7,979,803.60 : x
  2. Step 2: Convert to fraction form
    28,174,561.60/42,261,842.40 = 7,979,803.60/x
  3. Step 3: Cross multiply
    28,174,561.60x = 42,261,842.40 × 7,979,803.60
  4. Step 4: Simplify right side
    28,174,561.60x = 337,241,202,126,152.62
  5. Step 5: Solve for x
    x = 337,241,202,126,152.62/28,174,561.60
  6. Step 6: Final answer
    x = 11,969,705.40

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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.