Home / 278,326,293.09-384,079,761.86-154,574,941.83

Finding the Fourth Proportional to 278,326,293.09, 384,079,761.86 and 154,574,941.83

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Solution

The fourth proportional to 278,326,293.09, 384,079,761.86 and 154,574,941.83 is: 213,307,575.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,326,293.09 : 384,079,761.86 = 154,574,941.83 : x
  2. Step 2: Convert to fraction form
    278,326,293.09/384,079,761.86 = 154,574,941.83/x
  3. Step 3: Cross multiply
    278,326,293.09x = 384,079,761.86 × 154,574,941.83
  4. Step 4: Simplify right side
    278,326,293.09x = 59,369,106,846,816,888
  5. Step 5: Solve for x
    x = 59,369,106,846,816,888/278,326,293.09
  6. Step 6: Final answer
    x = 213,307,575.75

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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.