Home / 78,157,886.44-107,906,812.42-50,329,011.24

Finding the Fourth Proportional to 78,157,886.44, 107,906,812.42 and 50,329,011.24

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Solution

The fourth proportional to 78,157,886.44, 107,906,812.42 and 50,329,011.24 is: 69,485,542.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,157,886.44 : 107,906,812.42 = 50,329,011.24 : x
  2. Step 2: Convert to fraction form
    78,157,886.44/107,906,812.42 = 50,329,011.24/x
  3. Step 3: Cross multiply
    78,157,886.44x = 107,906,812.42 × 50,329,011.24
  4. Step 4: Simplify right side
    78,157,886.44x = 5,430,843,175,158,752
  5. Step 5: Solve for x
    x = 5,430,843,175,158,752/78,157,886.44
  6. Step 6: Final answer
    x = 69,485,542.95

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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.