Home / 257,398,975.80-355,217,938.38-156,933,211.32

Finding the Fourth Proportional to 257,398,975.80, 355,217,938.38 and 156,933,211.32

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Solution

The fourth proportional to 257,398,975.80, 355,217,938.38 and 156,933,211.32 is: 216,572,313.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,398,975.80 : 355,217,938.38 = 156,933,211.32 : x
  2. Step 2: Convert to fraction form
    257,398,975.80/355,217,938.38 = 156,933,211.32/x
  3. Step 3: Cross multiply
    257,398,975.80x = 355,217,938.38 × 156,933,211.32
  4. Step 4: Simplify right side
    257,398,975.80x = 55,745,491,788,443,272
  5. Step 5: Solve for x
    x = 55,745,491,788,443,272/257,398,975.80
  6. Step 6: Final answer
    x = 216,572,313.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.