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Finding the Fourth Proportional to 171,699,228.80, 257,548,843.20 and 103,506,819.20

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Solution

The fourth proportional to 171,699,228.80, 257,548,843.20 and 103,506,819.20 is: 155,260,228.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,699,228.80 : 257,548,843.20 = 103,506,819.20 : x
  2. Step 2: Convert to fraction form
    171,699,228.80/257,548,843.20 = 103,506,819.20/x
  3. Step 3: Cross multiply
    171,699,228.80x = 257,548,843.20 × 103,506,819.20
  4. Step 4: Simplify right side
    171,699,228.80x = 26,658,061,548,271,548
  5. Step 5: Solve for x
    x = 26,658,061,548,271,548/171,699,228.80
  6. Step 6: Final answer
    x = 155,260,228.80

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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.