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Finding the Fourth Proportional to 306,194,620.80, 459,291,931.20 and 220,101,178.80

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Solution

The fourth proportional to 306,194,620.80, 459,291,931.20 and 220,101,178.80 is: 330,151,768.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,194,620.80 : 459,291,931.20 = 220,101,178.80 : x
  2. Step 2: Convert to fraction form
    306,194,620.80/459,291,931.20 = 220,101,178.80/x
  3. Step 3: Cross multiply
    306,194,620.80x = 459,291,931.20 × 220,101,178.80
  4. Step 4: Simplify right side
    306,194,620.80x = 101,090,695,470,448,496
  5. Step 5: Solve for x
    x = 101,090,695,470,448,496/306,194,620.80
  6. Step 6: Final answer
    x = 330,151,768.20

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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.