Home / 124,663,380.68-172,052,555.36-71,739,000.64

Finding the Fourth Proportional to 124,663,380.68, 172,052,555.36 and 71,739,000.64

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Solution

The fourth proportional to 124,663,380.68, 172,052,555.36 and 71,739,000.64 is: 99,009,655.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,663,380.68 : 172,052,555.36 = 71,739,000.64 : x
  2. Step 2: Convert to fraction form
    124,663,380.68/172,052,555.36 = 71,739,000.64/x
  3. Step 3: Cross multiply
    124,663,380.68x = 172,052,555.36 × 71,739,000.64
  4. Step 4: Simplify right side
    124,663,380.68x = 12,342,878,379,084,676
  5. Step 5: Solve for x
    x = 12,342,878,379,084,676/124,663,380.68
  6. Step 6: Final answer
    x = 99,009,655.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.