Home / 100,732,720.21-151,129,917.28-51,583,373.10

Finding the Fourth Proportional to 100,732,720.21, 151,129,917.28 and 51,583,373.10

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Solution

The fourth proportional to 100,732,720.21, 151,129,917.28 and 51,583,373.10 is: 77,390,850.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,732,720.21 : 151,129,917.28 = 51,583,373.10 : x
  2. Step 2: Convert to fraction form
    100,732,720.21/151,129,917.28 = 51,583,373.10/x
  3. Step 3: Cross multiply
    100,732,720.21x = 151,129,917.28 × 51,583,373.10
  4. Step 4: Simplify right side
    100,732,720.21x = 7,795,790,909,626,377
  5. Step 5: Solve for x
    x = 7,795,790,909,626,377/100,732,720.21
  6. Step 6: Final answer
    x = 77,390,850.69

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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.