Home / 291,931,397.58-400,719,379.92-258,151,520.46

Finding the Fourth Proportional to 291,931,397.58, 400,719,379.92 and 258,151,520.46

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Solution

The fourth proportional to 291,931,397.58, 400,719,379.92 and 258,151,520.46 is: 354,351,460.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,931,397.58 : 400,719,379.92 = 258,151,520.46 : x
  2. Step 2: Convert to fraction form
    291,931,397.58/400,719,379.92 = 258,151,520.46/x
  3. Step 3: Cross multiply
    291,931,397.58x = 400,719,379.92 × 258,151,520.46
  4. Step 4: Simplify right side
    291,931,397.58x = 103,446,317,204,136,400
  5. Step 5: Solve for x
    x = 103,446,317,204,136,400/291,931,397.58
  6. Step 6: Final answer
    x = 354,351,460.86

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.