Home / 66,436,404.90-99,654,607.35-21,012,123.30

Finding the Fourth Proportional to 66,436,404.90, 99,654,607.35 and 21,012,123.30

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Solution

The fourth proportional to 66,436,404.90, 99,654,607.35 and 21,012,123.30 is: 31,518,184.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,436,404.90 : 99,654,607.35 = 21,012,123.30 : x
  2. Step 2: Convert to fraction form
    66,436,404.90/99,654,607.35 = 21,012,123.30/x
  3. Step 3: Cross multiply
    66,436,404.90x = 99,654,607.35 × 21,012,123.30
  4. Step 4: Simplify right side
    66,436,404.90x = 2,093,954,897,051,286.25
  5. Step 5: Solve for x
    x = 2,093,954,897,051,286.25/66,436,404.90
  6. Step 6: Final answer
    x = 31,518,184.95

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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.