Home / 42,748,867.60-64,131,077.40-13,986,998.80

Finding the Fourth Proportional to 42,748,867.60, 64,131,077.40 and 13,986,998.80

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Solution

The fourth proportional to 42,748,867.60, 64,131,077.40 and 13,986,998.80 is: 20,983,042.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,748,867.60 : 64,131,077.40 = 13,986,998.80 : x
  2. Step 2: Convert to fraction form
    42,748,867.60/64,131,077.40 = 13,986,998.80/x
  3. Step 3: Cross multiply
    42,748,867.60x = 64,131,077.40 × 13,986,998.80
  4. Step 4: Simplify right side
    42,748,867.60x = 897,001,302,636,507.12
  5. Step 5: Solve for x
    x = 897,001,302,636,507.12/42,748,867.60
  6. Step 6: Final answer
    x = 20,983,042.43

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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.