Home / 384,939,739.20-577,409,608.80-126,092,542.80

Finding the Fourth Proportional to 384,939,739.20, 577,409,608.80 and 126,092,542.80

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Solution

The fourth proportional to 384,939,739.20, 577,409,608.80 and 126,092,542.80 is: 189,138,814.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,939,739.20 : 577,409,608.80 = 126,092,542.80 : x
  2. Step 2: Convert to fraction form
    384,939,739.20/577,409,608.80 = 126,092,542.80/x
  3. Step 3: Cross multiply
    384,939,739.20x = 577,409,608.80 × 126,092,542.80
  4. Step 4: Simplify right side
    384,939,739.20x = 72,807,045,810,745,248
  5. Step 5: Solve for x
    x = 72,807,045,810,745,248/384,939,739.20
  6. Step 6: Final answer
    x = 189,138,814.20

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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.