Home / 78,915,172.62-108,898,545.36-43,630,937.82

Finding the Fourth Proportional to 78,915,172.62, 108,898,545.36 and 43,630,937.82

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Solution

The fourth proportional to 78,915,172.62, 108,898,545.36 and 43,630,937.82 is: 60,208,265.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,915,172.62 : 108,898,545.36 = 43,630,937.82 : x
  2. Step 2: Convert to fraction form
    78,915,172.62/108,898,545.36 = 43,630,937.82/x
  3. Step 3: Cross multiply
    78,915,172.62x = 108,898,545.36 × 43,630,937.82
  4. Step 4: Simplify right side
    78,915,172.62x = 4,751,345,661,290,610
  5. Step 5: Solve for x
    x = 4,751,345,661,290,610/78,915,172.62
  6. Step 6: Final answer
    x = 60,208,265.45

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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.