Home / 102,621,828.90-154,019,834.55-42,081,003.30

Finding the Fourth Proportional to 102,621,828.90, 154,019,834.55 and 42,081,003.30

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Solution

The fourth proportional to 102,621,828.90, 154,019,834.55 and 42,081,003.30 is: 63,157,217.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,621,828.90 : 154,019,834.55 = 42,081,003.30 : x
  2. Step 2: Convert to fraction form
    102,621,828.90/154,019,834.55 = 42,081,003.30/x
  3. Step 3: Cross multiply
    102,621,828.90x = 154,019,834.55 × 42,081,003.30
  4. Step 4: Simplify right side
    102,621,828.90x = 6,481,309,165,964,004
  5. Step 5: Solve for x
    x = 6,481,309,165,964,004/102,621,828.90
  6. Step 6: Final answer
    x = 63,157,217.48

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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.