Home / 79,255,685.69-118,921,097.55-38,292,162.38

Finding the Fourth Proportional to 79,255,685.69, 118,921,097.55 and 38,292,162.38

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Solution

The fourth proportional to 79,255,685.69, 118,921,097.55 and 38,292,162.38 is: 57,456,394.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,255,685.69 : 118,921,097.55 = 38,292,162.38 : x
  2. Step 2: Convert to fraction form
    79,255,685.69/118,921,097.55 = 38,292,162.38/x
  3. Step 3: Cross multiply
    79,255,685.69x = 118,921,097.55 × 38,292,162.38
  4. Step 4: Simplify right side
    79,255,685.69x = 4,553,745,977,792,420
  5. Step 5: Solve for x
    x = 4,553,745,977,792,420/79,255,685.69
  6. Step 6: Final answer
    x = 57,456,394.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.