Home / 139,907,841.08-193,073,155.92-78,032,165.48

Finding the Fourth Proportional to 139,907,841.08, 193,073,155.92 and 78,032,165.48

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Solution

The fourth proportional to 139,907,841.08, 193,073,155.92 and 78,032,165.48 is: 107,684,575.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,907,841.08 : 193,073,155.92 = 78,032,165.48 : x
  2. Step 2: Convert to fraction form
    139,907,841.08/193,073,155.92 = 78,032,165.48/x
  3. Step 3: Cross multiply
    139,907,841.08x = 193,073,155.92 × 78,032,165.48
  4. Step 4: Simplify right side
    139,907,841.08x = 15,065,916,452,495,282
  5. Step 5: Solve for x
    x = 15,065,916,452,495,282/139,907,841.08
  6. Step 6: Final answer
    x = 107,684,575.33

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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.