Home / 278,326,441.78-384,079,966.45-154,575,090.52

Finding the Fourth Proportional to 278,326,441.78, 384,079,966.45 and 154,575,090.52

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Solution

The fourth proportional to 278,326,441.78, 384,079,966.45 and 154,575,090.52 is: 213,307,780.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,326,441.78 : 384,079,966.45 = 154,575,090.52 : x
  2. Step 2: Convert to fraction form
    278,326,441.78/384,079,966.45 = 154,575,090.52/x
  3. Step 3: Cross multiply
    278,326,441.78x = 384,079,966.45 × 154,575,090.52
  4. Step 4: Simplify right side
    278,326,441.78x = 59,369,195,579,580,680
  5. Step 5: Solve for x
    x = 59,369,195,579,580,680/278,326,441.78
  6. Step 6: Final answer
    x = 213,307,780.61

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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.