Home / 8,220,723.40-12,331,085.10-7,884,800.20

Finding the Fourth Proportional to 8,220,723.40, 12,331,085.10 and 7,884,800.20

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Solution

The fourth proportional to 8,220,723.40, 12,331,085.10 and 7,884,800.20 is: 11,827,200.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,220,723.40 : 12,331,085.10 = 7,884,800.20 : x
  2. Step 2: Convert to fraction form
    8,220,723.40/12,331,085.10 = 7,884,800.20/x
  3. Step 3: Cross multiply
    8,220,723.40x = 12,331,085.10 × 7,884,800.20
  4. Step 4: Simplify right side
    8,220,723.40x = 97,228,142,262,697.02
  5. Step 5: Solve for x
    x = 97,228,142,262,697.02/8,220,723.40
  6. Step 6: Final answer
    x = 11,827,200.30

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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.