Home / 144,518,437.22-199,435,590.96-78,438,949.10

Finding the Fourth Proportional to 144,518,437.22, 199,435,590.96 and 78,438,949.10

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Solution

The fourth proportional to 144,518,437.22, 199,435,590.96 and 78,438,949.10 is: 108,245,829.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,518,437.22 : 199,435,590.96 = 78,438,949.10 : x
  2. Step 2: Convert to fraction form
    144,518,437.22/199,435,590.96 = 78,438,949.10/x
  3. Step 3: Cross multiply
    144,518,437.22x = 199,435,590.96 × 78,438,949.10
  4. Step 4: Simplify right side
    144,518,437.22x = 15,643,518,168,039,860
  5. Step 5: Solve for x
    x = 15,643,518,168,039,860/144,518,437.22
  6. Step 6: Final answer
    x = 108,245,829.87

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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.