Home / 66,448,388.70-99,653,920.65-21,024,107.10

Finding the Fourth Proportional to 66,448,388.70, 99,653,920.65 and 21,024,107.10

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Solution

The fourth proportional to 66,448,388.70, 99,653,920.65 and 21,024,107.10 is: 31,530,255.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,448,388.70 : 99,653,920.65 = 21,024,107.10 : x
  2. Step 2: Convert to fraction form
    66,448,388.70/99,653,920.65 = 21,024,107.10/x
  3. Step 3: Cross multiply
    66,448,388.70x = 99,653,920.65 × 21,024,107.10
  4. Step 4: Simplify right side
    66,448,388.70x = 2,095,134,700,680,502
  5. Step 5: Solve for x
    x = 2,095,134,700,680,502/66,448,388.70
  6. Step 6: Final answer
    x = 31,530,255.91

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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.