Home / 66,430,469.80-99,645,704.70-34,145,429.05

Finding the Fourth Proportional to 66,430,469.80, 99,645,704.70 and 34,145,429.05

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Solution

The fourth proportional to 66,430,469.80, 99,645,704.70 and 34,145,429.05 is: 51,218,143.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,430,469.80 : 99,645,704.70 = 34,145,429.05 : x
  2. Step 2: Convert to fraction form
    66,430,469.80/99,645,704.70 = 34,145,429.05/x
  3. Step 3: Cross multiply
    66,430,469.80x = 99,645,704.70 × 34,145,429.05
  4. Step 4: Simplify right side
    66,430,469.80x = 3,402,445,339,971,101.50
  5. Step 5: Solve for x
    x = 3,402,445,339,971,101.50/66,430,469.80
  6. Step 6: Final answer
    x = 51,218,143.58

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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.