Home / 8,669,909.70-13,004,864.55-8,138,468.70

Finding the Fourth Proportional to 8,669,909.70, 13,004,864.55 and 8,138,468.70

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Solution

The fourth proportional to 8,669,909.70, 13,004,864.55 and 8,138,468.70 is: 12,207,703.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,669,909.70 : 13,004,864.55 = 8,138,468.70 : x
  2. Step 2: Convert to fraction form
    8,669,909.70/13,004,864.55 = 8,138,468.70/x
  3. Step 3: Cross multiply
    8,669,909.70x = 13,004,864.55 × 8,138,468.70
  4. Step 4: Simplify right side
    8,669,909.70x = 105,839,683,087,914.59
  5. Step 5: Solve for x
    x = 105,839,683,087,914.59/8,669,909.70
  6. Step 6: Final answer
    x = 12,207,703.05

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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.