Home / 68,376,056.80-102,564,085.20-20,507,000.80

Finding the Fourth Proportional to 68,376,056.80, 102,564,085.20 and 20,507,000.80

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Solution

The fourth proportional to 68,376,056.80, 102,564,085.20 and 20,507,000.80 is: 30,760,501.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,376,056.80 : 102,564,085.20 = 20,507,000.80 : x
  2. Step 2: Convert to fraction form
    68,376,056.80/102,564,085.20 = 20,507,000.80/x
  3. Step 3: Cross multiply
    68,376,056.80x = 102,564,085.20 × 20,507,000.80
  4. Step 4: Simplify right side
    68,376,056.80x = 2,103,281,777,247,668.25
  5. Step 5: Solve for x
    x = 2,103,281,777,247,668.25/68,376,056.80
  6. Step 6: Final answer
    x = 30,760,501.20

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1.5x scale

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.