Home / 278,326,274.92-384,079,736.85-154,574,923.66

Finding the Fourth Proportional to 278,326,274.92, 384,079,736.85 and 154,574,923.66

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Solution

The fourth proportional to 278,326,274.92, 384,079,736.85 and 154,574,923.66 is: 213,307,550.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,326,274.92 : 384,079,736.85 = 154,574,923.66 : x
  2. Step 2: Convert to fraction form
    278,326,274.92/384,079,736.85 = 154,574,923.66/x
  3. Step 3: Cross multiply
    278,326,274.92x = 384,079,736.85 × 154,574,923.66
  4. Step 4: Simplify right side
    278,326,274.92x = 59,369,096,002,941,640
  5. Step 5: Solve for x
    x = 59,369,096,002,941,640/278,326,274.92
  6. Step 6: Final answer
    x = 213,307,550.72

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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.