Home / 142,489,449.04-196,618,850.76-79,768,981.48

Finding the Fourth Proportional to 142,489,449.04, 196,618,850.76 and 79,768,981.48

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Solution

The fourth proportional to 142,489,449.04, 196,618,850.76 and 79,768,981.48 is: 110,071,907.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,489,449.04 : 196,618,850.76 = 79,768,981.48 : x
  2. Step 2: Convert to fraction form
    142,489,449.04/196,618,850.76 = 79,768,981.48/x
  3. Step 3: Cross multiply
    142,489,449.04x = 196,618,850.76 × 79,768,981.48
  4. Step 4: Simplify right side
    142,489,449.04x = 15,684,085,464,893,324
  5. Step 5: Solve for x
    x = 15,684,085,464,893,324/142,489,449.04
  6. Step 6: Final answer
    x = 110,071,907.57

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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.