Home / 12,189,574.80-16,821,635.69-6,607,804.05

Finding the Fourth Proportional to 12,189,574.80, 16,821,635.69 and 6,607,804.05

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Solution

The fourth proportional to 12,189,574.80, 16,821,635.69 and 6,607,804.05 is: 9,118,781.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,189,574.80 : 16,821,635.69 = 6,607,804.05 : x
  2. Step 2: Convert to fraction form
    12,189,574.80/16,821,635.69 = 6,607,804.05/x
  3. Step 3: Cross multiply
    12,189,574.80x = 16,821,635.69 × 6,607,804.05
  4. Step 4: Simplify right side
    12,189,574.80x = 111,154,072,440,006.55
  5. Step 5: Solve for x
    x = 111,154,072,440,006.55/12,189,574.80
  6. Step 6: Final answer
    x = 9,118,781.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.