Home / 278,326,273.42-384,079,734.78-154,574,922.16

Finding the Fourth Proportional to 278,326,273.42, 384,079,734.78 and 154,574,922.16

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Solution

The fourth proportional to 278,326,273.42, 384,079,734.78 and 154,574,922.16 is: 213,307,548.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,326,273.42 : 384,079,734.78 = 154,574,922.16 : x
  2. Step 2: Convert to fraction form
    278,326,273.42/384,079,734.78 = 154,574,922.16/x
  3. Step 3: Cross multiply
    278,326,273.42x = 384,079,734.78 × 154,574,922.16
  4. Step 4: Simplify right side
    278,326,273.42x = 59,369,095,106,851,936
  5. Step 5: Solve for x
    x = 59,369,095,106,851,936/278,326,273.42
  6. Step 6: Final answer
    x = 213,307,548.65

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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.