Home / 53,992,905.70-80,996,462.55-19,938,172.90

Finding the Fourth Proportional to 53,992,905.70, 80,996,462.55 and 19,938,172.90

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Solution

The fourth proportional to 53,992,905.70, 80,996,462.55 and 19,938,172.90 is: 29,909,882.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,992,905.70 : 80,996,462.55 = 19,938,172.90 : x
  2. Step 2: Convert to fraction form
    53,992,905.70/80,996,462.55 = 19,938,172.90/x
  3. Step 3: Cross multiply
    53,992,905.70x = 80,996,462.55 × 19,938,172.90
  4. Step 4: Simplify right side
    53,992,905.70x = 1,614,921,474,610,274.75
  5. Step 5: Solve for x
    x = 1,614,921,474,610,274.75/53,992,905.70
  6. Step 6: Final answer
    x = 29,909,882.67

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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.