Home / 118,718,999.10-178,078,498.65-99,587,123.10

Finding the Fourth Proportional to 118,718,999.10, 178,078,498.65 and 99,587,123.10

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Solution

The fourth proportional to 118,718,999.10, 178,078,498.65 and 99,587,123.10 is: 149,380,684.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,718,999.10 : 178,078,498.65 = 99,587,123.10 : x
  2. Step 2: Convert to fraction form
    118,718,999.10/178,078,498.65 = 99,587,123.10/x
  3. Step 3: Cross multiply
    118,718,999.10x = 178,078,498.65 × 99,587,123.10
  4. Step 4: Simplify right side
    118,718,999.10x = 17,734,325,366,520,734
  5. Step 5: Solve for x
    x = 17,734,325,366,520,734/118,718,999.10
  6. Step 6: Final answer
    x = 149,380,684.65

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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.