Home / 278,326,275.80-384,079,738.05-154,574,924.54

Finding the Fourth Proportional to 278,326,275.80, 384,079,738.05 and 154,574,924.54

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Solution

The fourth proportional to 278,326,275.80, 384,079,738.05 and 154,574,924.54 is: 213,307,551.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,326,275.80 : 384,079,738.05 = 154,574,924.54 : x
  2. Step 2: Convert to fraction form
    278,326,275.80/384,079,738.05 = 154,574,924.54/x
  3. Step 3: Cross multiply
    278,326,275.80x = 384,079,738.05 × 154,574,924.54
  4. Step 4: Simplify right side
    278,326,275.80x = 59,369,096,524,501,320
  5. Step 5: Solve for x
    x = 59,369,096,524,501,320/278,326,275.80
  6. Step 6: Final answer
    x = 213,307,551.92

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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.