Home / 64,678,415.20-97,026,480.15-21,543,120.70

Finding the Fourth Proportional to 64,678,415.20, 97,026,480.15 and 21,543,120.70

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Solution

The fourth proportional to 64,678,415.20, 97,026,480.15 and 21,543,120.70 is: 32,317,631.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,678,415.20 : 97,026,480.15 = 21,543,120.70 : x
  2. Step 2: Convert to fraction form
    64,678,415.20/97,026,480.15 = 21,543,120.70/x
  3. Step 3: Cross multiply
    64,678,415.20x = 97,026,480.15 × 21,543,120.70
  4. Step 4: Simplify right side
    64,678,415.20x = 2,090,253,172,967,604.25
  5. Step 5: Solve for x
    x = 2,090,253,172,967,604.25/64,678,415.20
  6. Step 6: Final answer
    x = 32,317,631.26

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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.