Home / 79,747,427.44-119,621,128.92-19,163,154.16

Finding the Fourth Proportional to 79,747,427.44, 119,621,128.92 and 19,163,154.16

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Solution

The fourth proportional to 79,747,427.44, 119,621,128.92 and 19,163,154.16 is: 28,744,728.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,747,427.44 : 119,621,128.92 = 19,163,154.16 : x
  2. Step 2: Convert to fraction form
    79,747,427.44/119,621,128.92 = 19,163,154.16/x
  3. Step 3: Cross multiply
    79,747,427.44x = 119,621,128.92 × 19,163,154.16
  4. Step 4: Simplify right side
    79,747,427.44x = 2,292,318,134,287,194.50
  5. Step 5: Solve for x
    x = 2,292,318,134,287,194.50/79,747,427.44
  6. Step 6: Final answer
    x = 28,744,728.30

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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.