Home / 6,989,678.16-10,485,123.10-2,133,078.09

Finding the Fourth Proportional to 6,989,678.16, 10,485,123.10 and 2,133,078.09

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Solution

The fourth proportional to 6,989,678.16, 10,485,123.10 and 2,133,078.09 is: 3,199,802.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,989,678.16 : 10,485,123.10 = 2,133,078.09 : x
  2. Step 2: Convert to fraction form
    6,989,678.16/10,485,123.10 = 2,133,078.09/x
  3. Step 3: Cross multiply
    6,989,678.16x = 10,485,123.10 × 2,133,078.09
  4. Step 4: Simplify right side
    6,989,678.16x = 22,365,586,355,562.88
  5. Step 5: Solve for x
    x = 22,365,586,355,562.88/6,989,678.16
  6. Step 6: Final answer
    x = 3,199,802.03

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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.