Home / 69,984,071.20-104,976,106.80-18,871,256.80

Finding the Fourth Proportional to 69,984,071.20, 104,976,106.80 and 18,871,256.80

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Solution

The fourth proportional to 69,984,071.20, 104,976,106.80 and 18,871,256.80 is: 28,306,885.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,984,071.20 : 104,976,106.80 = 18,871,256.80 : x
  2. Step 2: Convert to fraction form
    69,984,071.20/104,976,106.80 = 18,871,256.80/x
  3. Step 3: Cross multiply
    69,984,071.20x = 104,976,106.80 × 18,871,256.80
  4. Step 4: Simplify right side
    69,984,071.20x = 1,981,031,069,287,026.25
  5. Step 5: Solve for x
    x = 1,981,031,069,287,026.25/69,984,071.20
  6. Step 6: Final answer
    x = 28,306,885.20

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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.