Home / 66,961,702.04-100,442,907.80-20,899,713.56

Finding the Fourth Proportional to 66,961,702.04, 100,442,907.80 and 20,899,713.56

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Solution

The fourth proportional to 66,961,702.04, 100,442,907.80 and 20,899,713.56 is: 31,349,681.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,961,702.04 : 100,442,907.80 = 20,899,713.56 : x
  2. Step 2: Convert to fraction form
    66,961,702.04/100,442,907.80 = 20,899,713.56/x
  3. Step 3: Cross multiply
    66,961,702.04x = 100,442,907.80 × 20,899,713.56
  4. Step 4: Simplify right side
    66,961,702.04x = 2,099,228,002,153,489.50
  5. Step 5: Solve for x
    x = 2,099,228,002,153,489.50/66,961,702.04
  6. Step 6: Final answer
    x = 31,349,681.06

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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.