Home / 42,834,654.86-64,197,394.77-20,065,360.46

Finding the Fourth Proportional to 42,834,654.86, 64,197,394.77 and 20,065,360.46

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Solution

The fourth proportional to 42,834,654.86, 64,197,394.77 and 20,065,360.46 is: 30,072,469.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,834,654.86 : 64,197,394.77 = 20,065,360.46 : x
  2. Step 2: Convert to fraction form
    42,834,654.86/64,197,394.77 = 20,065,360.46/x
  3. Step 3: Cross multiply
    42,834,654.86x = 64,197,394.77 × 20,065,360.46
  4. Step 4: Simplify right side
    42,834,654.86x = 1,288,143,866,652,969
  5. Step 5: Solve for x
    x = 1,288,143,866,652,969/42,834,654.86
  6. Step 6: Final answer
    x = 30,072,469.85

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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.