Home / 68,834,842.68-103,271,183.16-20,312,701.44

Finding the Fourth Proportional to 68,834,842.68, 103,271,183.16 and 20,312,701.44

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Solution

The fourth proportional to 68,834,842.68, 103,271,183.16 and 20,312,701.44 is: 30,474,635.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,834,842.68 : 103,271,183.16 = 20,312,701.44 : x
  2. Step 2: Convert to fraction form
    68,834,842.68/103,271,183.16 = 20,312,701.44/x
  3. Step 3: Cross multiply
    68,834,842.68x = 103,271,183.16 × 20,312,701.44
  4. Step 4: Simplify right side
    68,834,842.68x = 2,097,716,710,884,635.75
  5. Step 5: Solve for x
    x = 2,097,716,710,884,635.75/68,834,842.68
  6. Step 6: Final answer
    x = 30,474,635.07

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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.