Home / 144,518,436.22-199,435,589.58-78,438,948.10

Finding the Fourth Proportional to 144,518,436.22, 199,435,589.58 and 78,438,948.10

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Solution

The fourth proportional to 144,518,436.22, 199,435,589.58 and 78,438,948.10 is: 108,245,828.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,518,436.22 : 199,435,589.58 = 78,438,948.10 : x
  2. Step 2: Convert to fraction form
    144,518,436.22/199,435,589.58 = 78,438,948.10/x
  3. Step 3: Cross multiply
    144,518,436.22x = 199,435,589.58 × 78,438,948.10
  4. Step 4: Simplify right side
    144,518,436.22x = 15,643,517,860,358,520
  5. Step 5: Solve for x
    x = 15,643,517,860,358,520/144,518,436.22
  6. Step 6: Final answer
    x = 108,245,828.49

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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.