Home / 278,326,325.41-384,079,806.51-154,574,974.15

Finding the Fourth Proportional to 278,326,325.41, 384,079,806.51 and 154,574,974.15

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Solution

The fourth proportional to 278,326,325.41, 384,079,806.51 and 154,574,974.15 is: 213,307,620.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,326,325.41 : 384,079,806.51 = 154,574,974.15 : x
  2. Step 2: Convert to fraction form
    278,326,325.41/384,079,806.51 = 154,574,974.15/x
  3. Step 3: Cross multiply
    278,326,325.41x = 384,079,806.51 × 154,574,974.15
  4. Step 4: Simplify right side
    278,326,325.41x = 59,369,126,161,280,400
  5. Step 5: Solve for x
    x = 59,369,126,161,280,400/278,326,325.41
  6. Step 6: Final answer
    x = 213,307,620.38

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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.