Home / 260,136,779.45-390,049,339.13-82,797,318.71

Finding the Fourth Proportional to 260,136,779.45, 390,049,339.13 and 82,797,318.71

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Solution

The fourth proportional to 260,136,779.45, 390,049,339.13 and 82,797,318.71 is: 124,146,379.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,136,779.45 : 390,049,339.13 = 82,797,318.71 : x
  2. Step 2: Convert to fraction form
    260,136,779.45/390,049,339.13 = 82,797,318.71/x
  3. Step 3: Cross multiply
    260,136,779.45x = 390,049,339.13 × 82,797,318.71
  4. Step 4: Simplify right side
    260,136,779.45x = 32,295,039,442,207,252
  5. Step 5: Solve for x
    x = 32,295,039,442,207,252/260,136,779.45
  6. Step 6: Final answer
    x = 124,146,379.88

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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.