Home / 395,407,999.20-593,111,998.80-326,879,666.40

Finding the Fourth Proportional to 395,407,999.20, 593,111,998.80 and 326,879,666.40

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Solution

The fourth proportional to 395,407,999.20, 593,111,998.80 and 326,879,666.40 is: 490,319,499.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,407,999.20 : 593,111,998.80 = 326,879,666.40 : x
  2. Step 2: Convert to fraction form
    395,407,999.20/593,111,998.80 = 326,879,666.40/x
  3. Step 3: Cross multiply
    395,407,999.20x = 593,111,998.80 × 326,879,666.40
  4. Step 4: Simplify right side
    395,407,999.20x = 193,876,252,305,581,184
  5. Step 5: Solve for x
    x = 193,876,252,305,581,184/395,407,999.20
  6. Step 6: Final answer
    x = 490,319,499.60

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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.