Home / 320,780,739.96-442,626,856.90-186,840,699.70

Finding the Fourth Proportional to 320,780,739.96, 442,626,856.90 and 186,840,699.70

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Solution

The fourth proportional to 320,780,739.96, 442,626,856.90 and 186,840,699.70 is: 257,810,714.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,780,739.96 : 442,626,856.90 = 186,840,699.70 : x
  2. Step 2: Convert to fraction form
    320,780,739.96/442,626,856.90 = 186,840,699.70/x
  3. Step 3: Cross multiply
    320,780,739.96x = 442,626,856.90 × 186,840,699.70
  4. Step 4: Simplify right side
    320,780,739.96x = 82,700,711,649,207,760
  5. Step 5: Solve for x
    x = 82,700,711,649,207,760/320,780,739.96
  6. Step 6: Final answer
    x = 257,810,714.13

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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.