Home / 221,997,579.42-306,350,008.83-122,882,389.50

Finding the Fourth Proportional to 221,997,579.42, 306,350,008.83 and 122,882,389.50

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Solution

The fourth proportional to 221,997,579.42, 306,350,008.83 and 122,882,389.50 is: 169,574,016.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,997,579.42 : 306,350,008.83 = 122,882,389.50 : x
  2. Step 2: Convert to fraction form
    221,997,579.42/306,350,008.83 = 122,882,389.50/x
  3. Step 3: Cross multiply
    221,997,579.42x = 306,350,008.83 × 122,882,389.50
  4. Step 4: Simplify right side
    221,997,579.42x = 37,645,021,108,376,496
  5. Step 5: Solve for x
    x = 37,645,021,108,376,496/221,997,579.42
  6. Step 6: Final answer
    x = 169,574,016.11

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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.