Home / 72,980,791.77-100,713,531.87-39,941,021.55

Finding the Fourth Proportional to 72,980,791.77, 100,713,531.87 and 39,941,021.55

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Solution

The fourth proportional to 72,980,791.77, 100,713,531.87 and 39,941,021.55 is: 55,118,631.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,980,791.77 : 100,713,531.87 = 39,941,021.55 : x
  2. Step 2: Convert to fraction form
    72,980,791.77/100,713,531.87 = 39,941,021.55/x
  3. Step 3: Cross multiply
    72,980,791.77x = 100,713,531.87 × 39,941,021.55
  4. Step 4: Simplify right side
    72,980,791.77x = 4,022,601,346,796,281.50
  5. Step 5: Solve for x
    x = 4,022,601,346,796,281.50/72,980,791.77
  6. Step 6: Final answer
    x = 55,118,631.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.