Home / 260,016,085.40-390,081,864.90-87,488,029.40

Finding the Fourth Proportional to 260,016,085.40, 390,081,864.90 and 87,488,029.40

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Solution

The fourth proportional to 260,016,085.40, 390,081,864.90 and 87,488,029.40 is: 131,251,470.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,016,085.40 : 390,081,864.90 = 87,488,029.40 : x
  2. Step 2: Convert to fraction form
    260,016,085.40/390,081,864.90 = 87,488,029.40/x
  3. Step 3: Cross multiply
    260,016,085.40x = 390,081,864.90 × 87,488,029.40
  4. Step 4: Simplify right side
    260,016,085.40x = 34,127,493,664,778,028
  5. Step 5: Solve for x
    x = 34,127,493,664,778,028/260,016,085.40
  6. Step 6: Final answer
    x = 131,251,470.89

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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.