Home / 320,436,233.20-480,654,349.80-212,730,857.20

Finding the Fourth Proportional to 320,436,233.20, 480,654,349.80 and 212,730,857.20

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Solution

The fourth proportional to 320,436,233.20, 480,654,349.80 and 212,730,857.20 is: 319,096,285.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,436,233.20 : 480,654,349.80 = 212,730,857.20 : x
  2. Step 2: Convert to fraction form
    320,436,233.20/480,654,349.80 = 212,730,857.20/x
  3. Step 3: Cross multiply
    320,436,233.20x = 480,654,349.80 × 212,730,857.20
  4. Step 4: Simplify right side
    320,436,233.20x = 102,250,011,849,862,640
  5. Step 5: Solve for x
    x = 102,250,011,849,862,640/320,436,233.20
  6. Step 6: Final answer
    x = 319,096,285.80

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1.5x scale

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.