Home / 66,658,909.32-99,991,710.09-21,224,246.76

Finding the Fourth Proportional to 66,658,909.32, 99,991,710.09 and 21,224,246.76

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Solution

The fourth proportional to 66,658,909.32, 99,991,710.09 and 21,224,246.76 is: 31,837,435.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,658,909.32 : 99,991,710.09 = 21,224,246.76 : x
  2. Step 2: Convert to fraction form
    66,658,909.32/99,991,710.09 = 21,224,246.76/x
  3. Step 3: Cross multiply
    66,658,909.32x = 99,991,710.09 × 21,224,246.76
  4. Step 4: Simplify right side
    66,658,909.32x = 2,122,248,728,904,542
  5. Step 5: Solve for x
    x = 2,122,248,728,904,542/66,658,909.32
  6. Step 6: Final answer
    x = 31,837,435.54

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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.