Home / 100,507,400.30-150,761,100.45-80,352,008.30

Finding the Fourth Proportional to 100,507,400.30, 150,761,100.45 and 80,352,008.30

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Solution

The fourth proportional to 100,507,400.30, 150,761,100.45 and 80,352,008.30 is: 120,528,012.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,507,400.30 : 150,761,100.45 = 80,352,008.30 : x
  2. Step 2: Convert to fraction form
    100,507,400.30/150,761,100.45 = 80,352,008.30/x
  3. Step 3: Cross multiply
    100,507,400.30x = 150,761,100.45 × 80,352,008.30
  4. Step 4: Simplify right side
    100,507,400.30x = 12,113,957,194,675,532
  5. Step 5: Solve for x
    x = 12,113,957,194,675,532/100,507,400.30
  6. Step 6: Final answer
    x = 120,528,012.45

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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.