Home / 100,732,719.21-151,129,915.78-51,583,372.10

Finding the Fourth Proportional to 100,732,719.21, 151,129,915.78 and 51,583,372.10

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Solution

The fourth proportional to 100,732,719.21, 151,129,915.78 and 51,583,372.10 is: 77,390,849.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,732,719.21 : 151,129,915.78 = 51,583,372.10 : x
  2. Step 2: Convert to fraction form
    100,732,719.21/151,129,915.78 = 51,583,372.10/x
  3. Step 3: Cross multiply
    100,732,719.21x = 151,129,915.78 × 51,583,372.10
  4. Step 4: Simplify right side
    100,732,719.21x = 7,795,790,680,994,296
  5. Step 5: Solve for x
    x = 7,795,790,680,994,296/100,732,719.21
  6. Step 6: Final answer
    x = 77,390,849.19

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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.