Home / 14,185,621.80-21,278,432.70-5,209,007.40

Finding the Fourth Proportional to 14,185,621.80, 21,278,432.70 and 5,209,007.40

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Solution

The fourth proportional to 14,185,621.80, 21,278,432.70 and 5,209,007.40 is: 7,813,511.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,185,621.80 : 21,278,432.70 = 5,209,007.40 : x
  2. Step 2: Convert to fraction form
    14,185,621.80/21,278,432.70 = 5,209,007.40/x
  3. Step 3: Cross multiply
    14,185,621.80x = 21,278,432.70 × 5,209,007.40
  4. Step 4: Simplify right side
    14,185,621.80x = 110,839,513,394,701.98
  5. Step 5: Solve for x
    x = 110,839,513,394,701.98/14,185,621.80
  6. Step 6: Final answer
    x = 7,813,511.10

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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.