Home / 66,405,067.20-99,607,600.80-52,968,139.20

Finding the Fourth Proportional to 66,405,067.20, 99,607,600.80 and 52,968,139.20

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Solution

The fourth proportional to 66,405,067.20, 99,607,600.80 and 52,968,139.20 is: 79,452,208.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,405,067.20 : 99,607,600.80 = 52,968,139.20 : x
  2. Step 2: Convert to fraction form
    66,405,067.20/99,607,600.80 = 52,968,139.20/x
  3. Step 3: Cross multiply
    66,405,067.20x = 99,607,600.80 × 52,968,139.20
  4. Step 4: Simplify right side
    66,405,067.20x = 5,276,029,264,552,431
  5. Step 5: Solve for x
    x = 5,276,029,264,552,431/66,405,067.20
  6. Step 6: Final answer
    x = 79,452,208.80

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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.