Home / 42,408,736.80-63,613,105.20-28,971,808.80

Finding the Fourth Proportional to 42,408,736.80, 63,613,105.20 and 28,971,808.80

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Solution

The fourth proportional to 42,408,736.80, 63,613,105.20 and 28,971,808.80 is: 43,457,713.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,408,736.80 : 63,613,105.20 = 28,971,808.80 : x
  2. Step 2: Convert to fraction form
    42,408,736.80/63,613,105.20 = 28,971,808.80/x
  3. Step 3: Cross multiply
    42,408,736.80x = 63,613,105.20 × 28,971,808.80
  4. Step 4: Simplify right side
    42,408,736.80x = 1,842,986,721,028,686
  5. Step 5: Solve for x
    x = 1,842,986,721,028,686/42,408,736.80
  6. Step 6: Final answer
    x = 43,457,713.20

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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.