Home / 395,522,385.65-545,770,716.59-216,859,262.48

Finding the Fourth Proportional to 395,522,385.65, 545,770,716.59 and 216,859,262.48

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Solution

The fourth proportional to 395,522,385.65, 545,770,716.59 and 216,859,262.48 is: 299,238,271.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,522,385.65 : 545,770,716.59 = 216,859,262.48 : x
  2. Step 2: Convert to fraction form
    395,522,385.65/545,770,716.59 = 216,859,262.48/x
  3. Step 3: Cross multiply
    395,522,385.65x = 545,770,716.59 × 216,859,262.48
  4. Step 4: Simplify right side
    395,522,385.65x = 118,355,435,081,804,208
  5. Step 5: Solve for x
    x = 118,355,435,081,804,208/395,522,385.65
  6. Step 6: Final answer
    x = 299,238,271.65

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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.