Home / 8,300,971.40-12,425,919-5,416,126.43

Finding the Fourth Proportional to 8,300,971.40, 12,425,919 and 5,416,126.43

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Solution

The fourth proportional to 8,300,971.40, 12,425,919 and 5,416,126.43 is: 8,107,526.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,300,971.40 : 12,425,919 = 5,416,126.43 : x
  2. Step 2: Convert to fraction form
    8,300,971.40/12,425,919 = 5,416,126.43/x
  3. Step 3: Cross multiply
    8,300,971.40x = 12,425,919 × 5,416,126.43
  4. Step 4: Simplify right side
    8,300,971.40x = 67,300,348,312,939.16
  5. Step 5: Solve for x
    x = 67,300,348,312,939.16/8,300,971.40
  6. Step 6: Final answer
    x = 8,107,526.83

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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.