Home / 278,835,552.63-384,790,934.81-153,385,047.26

Finding the Fourth Proportional to 278,835,552.63, 384,790,934.81 and 153,385,047.26

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Solution

The fourth proportional to 278,835,552.63, 384,790,934.81 and 153,385,047.26 is: 211,670,194.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,835,552.63 : 384,790,934.81 = 153,385,047.26 : x
  2. Step 2: Convert to fraction form
    278,835,552.63/384,790,934.81 = 153,385,047.26/x
  3. Step 3: Cross multiply
    278,835,552.63x = 384,790,934.81 × 153,385,047.26
  4. Step 4: Simplify right side
    278,835,552.63x = 59,021,175,718,360,552
  5. Step 5: Solve for x
    x = 59,021,175,718,360,552/278,835,552.63
  6. Step 6: Final answer
    x = 211,670,194.71

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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.