Home / 18,659,730.46-27,990,038.55-5,012,894.20

Finding the Fourth Proportional to 18,659,730.46, 27,990,038.55 and 5,012,894.20

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Solution

The fourth proportional to 18,659,730.46, 27,990,038.55 and 5,012,894.20 is: 7,519,460.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,659,730.46 : 27,990,038.55 = 5,012,894.20 : x
  2. Step 2: Convert to fraction form
    18,659,730.46/27,990,038.55 = 5,012,894.20/x
  3. Step 3: Cross multiply
    18,659,730.46x = 27,990,038.55 × 5,012,894.20
  4. Step 4: Simplify right side
    18,659,730.46x = 140,311,101,905,071.42
  5. Step 5: Solve for x
    x = 140,311,101,905,071.42/18,659,730.46
  6. Step 6: Final answer
    x = 7,519,460.27

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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.