Home / 15,196,528.84-20,971,000.40-8,321,010.90

Finding the Fourth Proportional to 15,196,528.84, 20,971,000.40 and 8,321,010.90

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Solution

The fourth proportional to 15,196,528.84, 20,971,000.40 and 8,321,010.90 is: 11,482,880.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,196,528.84 : 20,971,000.40 = 8,321,010.90 : x
  2. Step 2: Convert to fraction form
    15,196,528.84/20,971,000.40 = 8,321,010.90/x
  3. Step 3: Cross multiply
    15,196,528.84x = 20,971,000.40 × 8,321,010.90
  4. Step 4: Simplify right side
    15,196,528.84x = 174,499,922,912,304.34
  5. Step 5: Solve for x
    x = 174,499,922,912,304.34/15,196,528.84
  6. Step 6: Final answer
    x = 11,482,880.38

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1.5x scale

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.