Home / 438,439,908.57-657,580,392.73-176,113,889.54

Finding the Fourth Proportional to 438,439,908.57, 657,580,392.73 and 176,113,889.54

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Solution

The fourth proportional to 438,439,908.57, 657,580,392.73 and 176,113,889.54 is: 264,138,912.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,439,908.57 : 657,580,392.73 = 176,113,889.54 : x
  2. Step 2: Convert to fraction form
    438,439,908.57/657,580,392.73 = 176,113,889.54/x
  3. Step 3: Cross multiply
    438,439,908.57x = 657,580,392.73 × 176,113,889.54
  4. Step 4: Simplify right side
    438,439,908.57x = 115,809,040,648,921,040
  5. Step 5: Solve for x
    x = 115,809,040,648,921,040/438,439,908.57
  6. Step 6: Final answer
    x = 264,138,912.51

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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.