Home / 287,718,306.78-397,050,516.54-160,557,651.81

Finding the Fourth Proportional to 287,718,306.78, 397,050,516.54 and 160,557,651.81

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Solution

The fourth proportional to 287,718,306.78, 397,050,516.54 and 160,557,651.81 is: 221,569,142.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,718,306.78 : 397,050,516.54 = 160,557,651.81 : x
  2. Step 2: Convert to fraction form
    287,718,306.78/397,050,516.54 = 160,557,651.81/x
  3. Step 3: Cross multiply
    287,718,306.78x = 397,050,516.54 × 160,557,651.81
  4. Step 4: Simplify right side
    287,718,306.78x = 63,749,498,585,609,968
  5. Step 5: Solve for x
    x = 63,749,498,585,609,968/287,718,306.78
  6. Step 6: Final answer
    x = 221,569,142.75

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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.