Home / 26,919,987.28-40,378,638.84-9,879,319.60

Finding the Fourth Proportional to 26,919,987.28, 40,378,638.84 and 9,879,319.60

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Solution

The fourth proportional to 26,919,987.28, 40,378,638.84 and 9,879,319.60 is: 14,818,486.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,919,987.28 : 40,378,638.84 = 9,879,319.60 : x
  2. Step 2: Convert to fraction form
    26,919,987.28/40,378,638.84 = 9,879,319.60/x
  3. Step 3: Cross multiply
    26,919,987.28x = 40,378,638.84 × 9,879,319.60
  4. Step 4: Simplify right side
    26,919,987.28x = 398,913,478,113,333.31
  5. Step 5: Solve for x
    x = 398,913,478,113,333.31/26,919,987.28
  6. Step 6: Final answer
    x = 14,818,486.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.