Home / 399,362,672.70-551,141,777.48-223,154,945.46

Finding the Fourth Proportional to 399,362,672.70, 551,141,777.48 and 223,154,945.46

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Solution

The fourth proportional to 399,362,672.70, 551,141,777.48 and 223,154,945.46 is: 307,965,720.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,362,672.70 : 551,141,777.48 = 223,154,945.46 : x
  2. Step 2: Convert to fraction form
    399,362,672.70/551,141,777.48 = 223,154,945.46/x
  3. Step 3: Cross multiply
    399,362,672.70x = 551,141,777.48 × 223,154,945.46
  4. Step 4: Simplify right side
    399,362,672.70x = 122,990,013,293,161,088
  5. Step 5: Solve for x
    x = 122,990,013,293,161,088/399,362,672.70
  6. Step 6: Final answer
    x = 307,965,720.64

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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.