Home / 20,790,276.40-31,185,414.60-5,646,084.40

Finding the Fourth Proportional to 20,790,276.40, 31,185,414.60 and 5,646,084.40

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Solution

The fourth proportional to 20,790,276.40, 31,185,414.60 and 5,646,084.40 is: 8,469,126.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,790,276.40 : 31,185,414.60 = 5,646,084.40 : x
  2. Step 2: Convert to fraction form
    20,790,276.40/31,185,414.60 = 5,646,084.40/x
  3. Step 3: Cross multiply
    20,790,276.40x = 31,185,414.60 × 5,646,084.40
  4. Step 4: Simplify right side
    20,790,276.40x = 176,075,482,880,592.25
  5. Step 5: Solve for x
    x = 176,075,482,880,592.25/20,790,276.40
  6. Step 6: Final answer
    x = 8,469,126.60

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1.5x scale

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.