Home / 8,669,853.70-13,004,780.55-8,138,412.70

Finding the Fourth Proportional to 8,669,853.70, 13,004,780.55 and 8,138,412.70

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Solution

The fourth proportional to 8,669,853.70, 13,004,780.55 and 8,138,412.70 is: 12,207,619.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,669,853.70 : 13,004,780.55 = 8,138,412.70 : x
  2. Step 2: Convert to fraction form
    8,669,853.70/13,004,780.55 = 8,138,412.70/x
  3. Step 3: Cross multiply
    8,669,853.70x = 13,004,780.55 × 8,138,412.70
  4. Step 4: Simplify right side
    8,669,853.70x = 105,838,271,188,833
  5. Step 5: Solve for x
    x = 105,838,271,188,833/8,669,853.70
  6. Step 6: Final answer
    x = 12,207,619.05

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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.