Home / 66,499,081.20-99,811,607.40-40,989,913.20

Finding the Fourth Proportional to 66,499,081.20, 99,811,607.40 and 40,989,913.20

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Solution

The fourth proportional to 66,499,081.20, 99,811,607.40 and 40,989,913.20 is: 61,523,694.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,499,081.20 : 99,811,607.40 = 40,989,913.20 : x
  2. Step 2: Convert to fraction form
    66,499,081.20/99,811,607.40 = 40,989,913.20/x
  3. Step 3: Cross multiply
    66,499,081.20x = 99,811,607.40 × 40,989,913.20
  4. Step 4: Simplify right side
    66,499,081.20x = 4,091,269,123,678,478
  5. Step 5: Solve for x
    x = 4,091,269,123,678,478/66,499,081.20
  6. Step 6: Final answer
    x = 61,523,694.01

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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.