Home / 7,776,005.10-11,664,007.65-3,989,870.70

Finding the Fourth Proportional to 7,776,005.10, 11,664,007.65 and 3,989,870.70

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Solution

The fourth proportional to 7,776,005.10, 11,664,007.65 and 3,989,870.70 is: 5,984,806.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,776,005.10 : 11,664,007.65 = 3,989,870.70 : x
  2. Step 2: Convert to fraction form
    7,776,005.10/11,664,007.65 = 3,989,870.70/x
  3. Step 3: Cross multiply
    7,776,005.10x = 11,664,007.65 × 3,989,870.70
  4. Step 4: Simplify right side
    7,776,005.10x = 46,537,882,367,310.86
  5. Step 5: Solve for x
    x = 46,537,882,367,310.86/7,776,005.10
  6. Step 6: Final answer
    x = 5,984,806.05

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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.