Home / 78,396,135.04-108,183,835.06-43,113,635.84

Finding the Fourth Proportional to 78,396,135.04, 108,183,835.06 and 43,113,635.84

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Solution

The fourth proportional to 78,396,135.04, 108,183,835.06 and 43,113,635.84 is: 59,495,260.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,396,135.04 : 108,183,835.06 = 43,113,635.84 : x
  2. Step 2: Convert to fraction form
    78,396,135.04/108,183,835.06 = 43,113,635.84/x
  3. Step 3: Cross multiply
    78,396,135.04x = 108,183,835.06 × 43,113,635.84
  4. Step 4: Simplify right side
    78,396,135.04x = 4,664,198,468,551,465
  5. Step 5: Solve for x
    x = 4,664,198,468,551,465/78,396,135.04
  6. Step 6: Final answer
    x = 59,495,260.40

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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.