Home / 66,466,191.60-99,689,956.20-21,032,578.80

Finding the Fourth Proportional to 66,466,191.60, 99,689,956.20 and 21,032,578.80

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Solution

The fourth proportional to 66,466,191.60, 99,689,956.20 and 21,032,578.80 is: 31,545,915.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,466,191.60 : 99,689,956.20 = 21,032,578.80 : x
  2. Step 2: Convert to fraction form
    66,466,191.60/99,689,956.20 = 21,032,578.80/x
  3. Step 3: Cross multiply
    66,466,191.60x = 99,689,956.20 × 21,032,578.80
  4. Step 4: Simplify right side
    66,466,191.60x = 2,096,736,859,345,048.75
  5. Step 5: Solve for x
    x = 2,096,736,859,345,048.75/66,466,191.60
  6. Step 6: Final answer
    x = 31,545,915.43

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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.