Home / 66,515,448.45-99,773,172.68-43,821,970.05

Finding the Fourth Proportional to 66,515,448.45, 99,773,172.68 and 43,821,970.05

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Solution

The fourth proportional to 66,515,448.45, 99,773,172.68 and 43,821,970.05 is: 65,732,955.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,515,448.45 : 99,773,172.68 = 43,821,970.05 : x
  2. Step 2: Convert to fraction form
    66,515,448.45/99,773,172.68 = 43,821,970.05/x
  3. Step 3: Cross multiply
    66,515,448.45x = 99,773,172.68 × 43,821,970.05
  4. Step 4: Simplify right side
    66,515,448.45x = 4,372,256,984,757,328
  5. Step 5: Solve for x
    x = 4,372,256,984,757,328/66,515,448.45
  6. Step 6: Final answer
    x = 65,732,955.08

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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.