Home / 72,941,762.84-100,659,331.73-39,451,279.28

Finding the Fourth Proportional to 72,941,762.84, 100,659,331.73 and 39,451,279.28

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Solution

The fourth proportional to 72,941,762.84, 100,659,331.73 and 39,451,279.28 is: 54,442,602.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,941,762.84 : 100,659,331.73 = 39,451,279.28 : x
  2. Step 2: Convert to fraction form
    72,941,762.84/100,659,331.73 = 39,451,279.28/x
  3. Step 3: Cross multiply
    72,941,762.84x = 100,659,331.73 × 39,451,279.28
  4. Step 4: Simplify right side
    72,941,762.84x = 3,971,139,407,813,727
  5. Step 5: Solve for x
    x = 3,971,139,407,813,727/72,941,762.84
  6. Step 6: Final answer
    x = 54,442,602.61

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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.