Home / 100,518,954.12-150,778,431.90-28,715,370.12

Finding the Fourth Proportional to 100,518,954.12, 150,778,431.90 and 28,715,370.12

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Solution

The fourth proportional to 100,518,954.12, 150,778,431.90 and 28,715,370.12 is: 43,073,055.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,518,954.12 : 150,778,431.90 = 28,715,370.12 : x
  2. Step 2: Convert to fraction form
    100,518,954.12/150,778,431.90 = 28,715,370.12/x
  3. Step 3: Cross multiply
    100,518,954.12x = 150,778,431.90 × 28,715,370.12
  4. Step 4: Simplify right side
    100,518,954.12x = 4,329,658,478,121,715
  5. Step 5: Solve for x
    x = 4,329,658,478,121,715/100,518,954.12
  6. Step 6: Final answer
    x = 43,073,055.39

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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.