Home / 290,333,043.60-435,499,565.40-258,588,301.20

Finding the Fourth Proportional to 290,333,043.60, 435,499,565.40 and 258,588,301.20

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Solution

The fourth proportional to 290,333,043.60, 435,499,565.40 and 258,588,301.20 is: 387,882,451.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,333,043.60 : 435,499,565.40 = 258,588,301.20 : x
  2. Step 2: Convert to fraction form
    290,333,043.60/435,499,565.40 = 258,588,301.20/x
  3. Step 3: Cross multiply
    290,333,043.60x = 435,499,565.40 × 258,588,301.20
  4. Step 4: Simplify right side
    290,333,043.60x = 112,615,092,790,124,288
  5. Step 5: Solve for x
    x = 112,615,092,790,124,288/290,333,043.60
  6. Step 6: Final answer
    x = 387,882,451.80

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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.