Home / 66,447,112.20-99,652,005.90-21,022,830.60

Finding the Fourth Proportional to 66,447,112.20, 99,652,005.90 and 21,022,830.60

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Solution

The fourth proportional to 66,447,112.20, 99,652,005.90 and 21,022,830.60 is: 31,528,341.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,447,112.20 : 99,652,005.90 = 21,022,830.60 : x
  2. Step 2: Convert to fraction form
    66,447,112.20/99,652,005.90 = 21,022,830.60/x
  3. Step 3: Cross multiply
    66,447,112.20x = 99,652,005.90 × 21,022,830.60
  4. Step 4: Simplify right side
    66,447,112.20x = 2,094,967,238,985,900.75
  5. Step 5: Solve for x
    x = 2,094,967,238,985,900.75/66,447,112.20
  6. Step 6: Final answer
    x = 31,528,341.41

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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.