Home / 278,326,280.30-384,079,744.26-154,574,929.04

Finding the Fourth Proportional to 278,326,280.30, 384,079,744.26 and 154,574,929.04

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Solution

The fourth proportional to 278,326,280.30, 384,079,744.26 and 154,574,929.04 is: 213,307,558.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,326,280.30 : 384,079,744.26 = 154,574,929.04 : x
  2. Step 2: Convert to fraction form
    278,326,280.30/384,079,744.26 = 154,574,929.04/x
  3. Step 3: Cross multiply
    278,326,280.30x = 384,079,744.26 × 154,574,929.04
  4. Step 4: Simplify right side
    278,326,280.30x = 59,369,099,212,770,448
  5. Step 5: Solve for x
    x = 59,369,099,212,770,448/278,326,280.30
  6. Step 6: Final answer
    x = 213,307,558.13

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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.