Home / 30,890,508-42,477,735.60-26,809,041.12

Finding the Fourth Proportional to 30,890,508, 42,477,735.60 and 26,809,041.12

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Solution

The fourth proportional to 30,890,508, 42,477,735.60 and 26,809,041.12 is: 36,865,284.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,890,508 : 42,477,735.60 = 26,809,041.12 : x
  2. Step 2: Convert to fraction form
    30,890,508/42,477,735.60 = 26,809,041.12/x
  3. Step 3: Cross multiply
    30,890,508x = 42,477,735.60 × 26,809,041.12
  4. Step 4: Simplify right side
    30,890,508x = 1,138,787,360,384,888
  5. Step 5: Solve for x
    x = 1,138,787,360,384,888/30,890,508
  6. Step 6: Final answer
    x = 36,865,284.33

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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.