Home / 118,191,115.28-177,555,715.44-85,502,511.44

Finding the Fourth Proportional to 118,191,115.28, 177,555,715.44 and 85,502,511.44

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Solution

The fourth proportional to 118,191,115.28, 177,555,715.44 and 85,502,511.44 is: 128,448,399.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,191,115.28 : 177,555,715.44 = 85,502,511.44 : x
  2. Step 2: Convert to fraction form
    118,191,115.28/177,555,715.44 = 85,502,511.44/x
  3. Step 3: Cross multiply
    118,191,115.28x = 177,555,715.44 × 85,502,511.44
  4. Step 4: Simplify right side
    118,191,115.28x = 15,181,459,590,645,984
  5. Step 5: Solve for x
    x = 15,181,459,590,645,984/118,191,115.28
  6. Step 6: Final answer
    x = 128,448,399.48

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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.