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Finding the Fourth Proportional to 399,417,478.80, 599,126,218.20 and 184,426,630.80

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Solution

The fourth proportional to 399,417,478.80, 599,126,218.20 and 184,426,630.80 is: 276,639,946.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,417,478.80 : 599,126,218.20 = 184,426,630.80 : x
  2. Step 2: Convert to fraction form
    399,417,478.80/599,126,218.20 = 184,426,630.80/x
  3. Step 3: Cross multiply
    399,417,478.80x = 599,126,218.20 × 184,426,630.80
  4. Step 4: Simplify right side
    399,417,478.80x = 110,494,829,846,571,664
  5. Step 5: Solve for x
    x = 110,494,829,846,571,664/399,417,478.80
  6. Step 6: Final answer
    x = 276,639,946.20

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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.