Home / 68,834,823.12-103,271,153.85-20,312,681.94

Finding the Fourth Proportional to 68,834,823.12, 103,271,153.85 and 20,312,681.94

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Solution

The fourth proportional to 68,834,823.12, 103,271,153.85 and 20,312,681.94 is: 30,474,605.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,834,823.12 : 103,271,153.85 = 20,312,681.94 : x
  2. Step 2: Convert to fraction form
    68,834,823.12/103,271,153.85 = 20,312,681.94/x
  3. Step 3: Cross multiply
    68,834,823.12x = 103,271,153.85 × 20,312,681.94
  4. Step 4: Simplify right side
    68,834,823.12x = 2,097,714,101,731,856.50
  5. Step 5: Solve for x
    x = 2,097,714,101,731,856.50/68,834,823.12
  6. Step 6: Final answer
    x = 30,474,605.83

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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.