Home / 75,418,209.64-113,106,667.98-20,817,742.60

Finding the Fourth Proportional to 75,418,209.64, 113,106,667.98 and 20,817,742.60

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Solution

The fourth proportional to 75,418,209.64, 113,106,667.98 and 20,817,742.60 is: 31,220,914.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,418,209.64 : 113,106,667.98 = 20,817,742.60 : x
  2. Step 2: Convert to fraction form
    75,418,209.64/113,106,667.98 = 20,817,742.60/x
  3. Step 3: Cross multiply
    75,418,209.64x = 113,106,667.98 × 20,817,742.60
  4. Step 4: Simplify right side
    75,418,209.64x = 2,354,625,500,351,302
  5. Step 5: Solve for x
    x = 2,354,625,500,351,302/75,418,209.64
  6. Step 6: Final answer
    x = 31,220,914.84

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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.