Home / 8,210,031.40-12,315,047.10-7,874,108.20

Finding the Fourth Proportional to 8,210,031.40, 12,315,047.10 and 7,874,108.20

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Solution

The fourth proportional to 8,210,031.40, 12,315,047.10 and 7,874,108.20 is: 11,811,162.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,210,031.40 : 12,315,047.10 = 7,874,108.20 : x
  2. Step 2: Convert to fraction form
    8,210,031.40/12,315,047.10 = 7,874,108.20/x
  3. Step 3: Cross multiply
    8,210,031.40x = 12,315,047.10 × 7,874,108.20
  4. Step 4: Simplify right side
    8,210,031.40x = 96,970,013,353,496.22
  5. Step 5: Solve for x
    x = 96,970,013,353,496.22/8,210,031.40
  6. Step 6: Final answer
    x = 11,811,162.30

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Similar ratio
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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.