Home / 66,716,421.12-100,082,096.64-21,267,671.04

Finding the Fourth Proportional to 66,716,421.12, 100,082,096.64 and 21,267,671.04

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Solution

The fourth proportional to 66,716,421.12, 100,082,096.64 and 21,267,671.04 is: 31,903,886.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,716,421.12 : 100,082,096.64 = 21,267,671.04 : x
  2. Step 2: Convert to fraction form
    66,716,421.12/100,082,096.64 = 21,267,671.04/x
  3. Step 3: Cross multiply
    66,716,421.12x = 100,082,096.64 × 21,267,671.04
  4. Step 4: Simplify right side
    66,716,421.12x = 2,128,513,108,333,009.25
  5. Step 5: Solve for x
    x = 2,128,513,108,333,009.25/66,716,421.12
  6. Step 6: Final answer
    x = 31,903,886.22

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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.