Home / 381,962,631.37-572,359,167.08-257,002,409.58

Finding the Fourth Proportional to 381,962,631.37, 572,359,167.08 and 257,002,409.58

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Solution

The fourth proportional to 381,962,631.37, 572,359,167.08 and 257,002,409.58 is: 385,110,146.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,962,631.37 : 572,359,167.08 = 257,002,409.58 : x
  2. Step 2: Convert to fraction form
    381,962,631.37/572,359,167.08 = 257,002,409.58/x
  3. Step 3: Cross multiply
    381,962,631.37x = 572,359,167.08 × 257,002,409.58
  4. Step 4: Simplify right side
    381,962,631.37x = 147,097,685,084,630,432
  5. Step 5: Solve for x
    x = 147,097,685,084,630,432/381,962,631.37
  6. Step 6: Final answer
    x = 385,110,146.92

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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.