Home / 71,991,497.12-108,003,108.72-20,875,650.08

Finding the Fourth Proportional to 71,991,497.12, 108,003,108.72 and 20,875,650.08

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Solution

The fourth proportional to 71,991,497.12, 108,003,108.72 and 20,875,650.08 is: 31,318,074.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,991,497.12 : 108,003,108.72 = 20,875,650.08 : x
  2. Step 2: Convert to fraction form
    71,991,497.12/108,003,108.72 = 20,875,650.08/x
  3. Step 3: Cross multiply
    71,991,497.12x = 108,003,108.72 × 20,875,650.08
  4. Step 4: Simplify right side
    71,991,497.12x = 2,254,635,105,190,916.50
  5. Step 5: Solve for x
    x = 2,254,635,105,190,916.50/71,991,497.12
  6. Step 6: Final answer
    x = 31,318,074.99

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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.