Home / 28,190,748.60-42,281,975.70-7,998,031.80

Finding the Fourth Proportional to 28,190,748.60, 42,281,975.70 and 7,998,031.80

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Solution

The fourth proportional to 28,190,748.60, 42,281,975.70 and 7,998,031.80 is: 11,995,871.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,190,748.60 : 42,281,975.70 = 7,998,031.80 : x
  2. Step 2: Convert to fraction form
    28,190,748.60/42,281,975.70 = 7,998,031.80/x
  3. Step 3: Cross multiply
    28,190,748.60x = 42,281,975.70 × 7,998,031.80
  4. Step 4: Simplify right side
    28,190,748.60x = 338,172,586,215,427.25
  5. Step 5: Solve for x
    x = 338,172,586,215,427.25/28,190,748.60
  6. Step 6: Final answer
    x = 11,995,871.09

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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.