Home / 66,408,970.20-99,613,455.30-52,972,042.20

Finding the Fourth Proportional to 66,408,970.20, 99,613,455.30 and 52,972,042.20

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Solution

The fourth proportional to 66,408,970.20, 99,613,455.30 and 52,972,042.20 is: 79,458,063.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,408,970.20 : 99,613,455.30 = 52,972,042.20 : x
  2. Step 2: Convert to fraction form
    66,408,970.20/99,613,455.30 = 52,972,042.20/x
  3. Step 3: Cross multiply
    66,408,970.20x = 99,613,455.30 × 52,972,042.20
  4. Step 4: Simplify right side
    66,408,970.20x = 5,276,728,157,839,414
  5. Step 5: Solve for x
    x = 5,276,728,157,839,414/66,408,970.20
  6. Step 6: Final answer
    x = 79,458,063.30

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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.