Home / 30,918,917.45-42,684,671.37-23,839,047.68

Finding the Fourth Proportional to 30,918,917.45, 42,684,671.37 and 23,839,047.68

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Solution

The fourth proportional to 30,918,917.45, 42,684,671.37 and 23,839,047.68 is: 32,910,657.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,918,917.45 : 42,684,671.37 = 23,839,047.68 : x
  2. Step 2: Convert to fraction form
    30,918,917.45/42,684,671.37 = 23,839,047.68/x
  3. Step 3: Cross multiply
    30,918,917.45x = 42,684,671.37 × 23,839,047.68
  4. Step 4: Simplify right side
    30,918,917.45x = 1,017,561,915,781,137.50
  5. Step 5: Solve for x
    x = 1,017,561,915,781,137.50/30,918,917.45
  6. Step 6: Final answer
    x = 32,910,657.94

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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.