Home / 42,365,809.80-63,548,714.70-20,842,449.30

Finding the Fourth Proportional to 42,365,809.80, 63,548,714.70 and 20,842,449.30

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Solution

The fourth proportional to 42,365,809.80, 63,548,714.70 and 20,842,449.30 is: 31,263,673.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,365,809.80 : 63,548,714.70 = 20,842,449.30 : x
  2. Step 2: Convert to fraction form
    42,365,809.80/63,548,714.70 = 20,842,449.30/x
  3. Step 3: Cross multiply
    42,365,809.80x = 63,548,714.70 × 20,842,449.30
  4. Step 4: Simplify right side
    42,365,809.80x = 1,324,510,864,214,914.75
  5. Step 5: Solve for x
    x = 1,324,510,864,214,914.75/42,365,809.80
  6. Step 6: Final answer
    x = 31,263,673.95

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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.