Home / 84,012,808-126,019,212.06-20,187,400

Finding the Fourth Proportional to 84,012,808, 126,019,212.06 and 20,187,400

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Solution

The fourth proportional to 84,012,808, 126,019,212.06 and 20,187,400 is: 30,281,100.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,012,808 : 126,019,212.06 = 20,187,400 : x
  2. Step 2: Convert to fraction form
    84,012,808/126,019,212.06 = 20,187,400/x
  3. Step 3: Cross multiply
    84,012,808x = 126,019,212.06 × 20,187,400
  4. Step 4: Simplify right side
    84,012,808x = 2,544,000,241,540,044
  5. Step 5: Solve for x
    x = 2,544,000,241,540,044/84,012,808
  6. Step 6: Final answer
    x = 30,281,100.01

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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.