Home / 321,489,009.40-482,233,514.10-319,221,527.80

Finding the Fourth Proportional to 321,489,009.40, 482,233,514.10 and 319,221,527.80

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Solution

The fourth proportional to 321,489,009.40, 482,233,514.10 and 319,221,527.80 is: 478,832,291.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,489,009.40 : 482,233,514.10 = 319,221,527.80 : x
  2. Step 2: Convert to fraction form
    321,489,009.40/482,233,514.10 = 319,221,527.80/x
  3. Step 3: Cross multiply
    321,489,009.40x = 482,233,514.10 × 319,221,527.80
  4. Step 4: Simplify right side
    321,489,009.40x = 153,939,319,127,364,864
  5. Step 5: Solve for x
    x = 153,939,319,127,364,864/321,489,009.40
  6. Step 6: Final answer
    x = 478,832,291.70

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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.