Home / 318,376,601.60-477,328,972.80-215,884,851.20

Finding the Fourth Proportional to 318,376,601.60, 477,328,972.80 and 215,884,851.20

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Solution

The fourth proportional to 318,376,601.60, 477,328,972.80 and 215,884,851.20 is: 323,667,297.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,376,601.60 : 477,328,972.80 = 215,884,851.20 : x
  2. Step 2: Convert to fraction form
    318,376,601.60/477,328,972.80 = 215,884,851.20/x
  3. Step 3: Cross multiply
    318,376,601.60x = 477,328,972.80 × 215,884,851.20
  4. Step 4: Simplify right side
    318,376,601.60x = 103,048,094,266,376,848
  5. Step 5: Solve for x
    x = 103,048,094,266,376,848/318,376,601.60
  6. Step 6: Final answer
    x = 323,667,297.62

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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.