Home / 82,218,942.02-123,288,056.51-40,671,814.95

Finding the Fourth Proportional to 82,218,942.02, 123,288,056.51 and 40,671,814.95

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Solution

The fourth proportional to 82,218,942.02, 123,288,056.51 and 40,671,814.95 is: 60,987,758.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,218,942.02 : 123,288,056.51 = 40,671,814.95 : x
  2. Step 2: Convert to fraction form
    82,218,942.02/123,288,056.51 = 40,671,814.95/x
  3. Step 3: Cross multiply
    82,218,942.02x = 123,288,056.51 × 40,671,814.95
  4. Step 4: Simplify right side
    82,218,942.02x = 5,014,349,019,716,504
  5. Step 5: Solve for x
    x = 5,014,349,019,716,504/82,218,942.02
  6. Step 6: Final answer
    x = 60,987,758.98

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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.