Home / 42,834,654.36-64,197,394.02-20,065,359.96

Finding the Fourth Proportional to 42,834,654.36, 64,197,394.02 and 20,065,359.96

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Solution

The fourth proportional to 42,834,654.36, 64,197,394.02 and 20,065,359.96 is: 30,072,469.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,834,654.36 : 64,197,394.02 = 20,065,359.96 : x
  2. Step 2: Convert to fraction form
    42,834,654.36/64,197,394.02 = 20,065,359.96/x
  3. Step 3: Cross multiply
    42,834,654.36x = 64,197,394.02 × 20,065,359.96
  4. Step 4: Simplify right side
    42,834,654.36x = 1,288,143,819,505,251.50
  5. Step 5: Solve for x
    x = 1,288,143,819,505,251.50/42,834,654.36
  6. Step 6: Final answer
    x = 30,072,469.10

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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.