Home / 8,210,200.20-12,315,300.30-5,186,891.40

Finding the Fourth Proportional to 8,210,200.20, 12,315,300.30 and 5,186,891.40

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Solution

The fourth proportional to 8,210,200.20, 12,315,300.30 and 5,186,891.40 is: 7,780,337.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,210,200.20 : 12,315,300.30 = 5,186,891.40 : x
  2. Step 2: Convert to fraction form
    8,210,200.20/12,315,300.30 = 5,186,891.40/x
  3. Step 3: Cross multiply
    8,210,200.20x = 12,315,300.30 × 5,186,891.40
  4. Step 4: Simplify right side
    8,210,200.20x = 63,878,125,214,487.43
  5. Step 5: Solve for x
    x = 63,878,125,214,487.43/8,210,200.20
  6. Step 6: Final answer
    x = 7,780,337.10

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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.