Home / 320,679,239.40-481,018,859.10-159,436,103.40

Finding the Fourth Proportional to 320,679,239.40, 481,018,859.10 and 159,436,103.40

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Solution

The fourth proportional to 320,679,239.40, 481,018,859.10 and 159,436,103.40 is: 239,154,155.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,679,239.40 : 481,018,859.10 = 159,436,103.40 : x
  2. Step 2: Convert to fraction form
    320,679,239.40/481,018,859.10 = 159,436,103.40/x
  3. Step 3: Cross multiply
    320,679,239.40x = 481,018,859.10 × 159,436,103.40
  4. Step 4: Simplify right side
    320,679,239.40x = 76,691,772,556,817,632
  5. Step 5: Solve for x
    x = 76,691,772,556,817,632/320,679,239.40
  6. Step 6: Final answer
    x = 239,154,155.10

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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.