Home / 66,716,430.12-100,082,110.14-21,267,680.04

Finding the Fourth Proportional to 66,716,430.12, 100,082,110.14 and 21,267,680.04

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Solution

The fourth proportional to 66,716,430.12, 100,082,110.14 and 21,267,680.04 is: 31,903,899.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,716,430.12 : 100,082,110.14 = 21,267,680.04 : x
  2. Step 2: Convert to fraction form
    66,716,430.12/100,082,110.14 = 21,267,680.04/x
  3. Step 3: Cross multiply
    66,716,430.12x = 100,082,110.14 × 21,267,680.04
  4. Step 4: Simplify right side
    66,716,430.12x = 2,128,514,296,185,559.50
  5. Step 5: Solve for x
    x = 2,128,514,296,185,559.50/66,716,430.12
  6. Step 6: Final answer
    x = 31,903,899.72

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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.