Home / 399,358,819.65-599,102,599.20-123,009,905.31

Finding the Fourth Proportional to 399,358,819.65, 599,102,599.20 and 123,009,905.31

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Solution

The fourth proportional to 399,358,819.65, 599,102,599.20 and 123,009,905.31 is: 184,534,685.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,358,819.65 : 599,102,599.20 = 123,009,905.31 : x
  2. Step 2: Convert to fraction form
    399,358,819.65/599,102,599.20 = 123,009,905.31/x
  3. Step 3: Cross multiply
    399,358,819.65x = 599,102,599.20 × 123,009,905.31
  4. Step 4: Simplify right side
    399,358,819.65x = 73,695,553,998,566,896
  5. Step 5: Solve for x
    x = 73,695,553,998,566,896/399,358,819.65
  6. Step 6: Final answer
    x = 184,534,685.03

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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.