Home / 10,502,406.70-15,765,419.85-8,116,827.10

Finding the Fourth Proportional to 10,502,406.70, 15,765,419.85 and 8,116,827.10

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Solution

The fourth proportional to 10,502,406.70, 15,765,419.85 and 8,116,827.10 is: 12,184,367.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,502,406.70 : 15,765,419.85 = 8,116,827.10 : x
  2. Step 2: Convert to fraction form
    10,502,406.70/15,765,419.85 = 8,116,827.10/x
  3. Step 3: Cross multiply
    10,502,406.70x = 15,765,419.85 × 8,116,827.10
  4. Step 4: Simplify right side
    10,502,406.70x = 127,965,187,081,357.92
  5. Step 5: Solve for x
    x = 127,965,187,081,357.92/10,502,406.70
  6. Step 6: Final answer
    x = 12,184,367.90

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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.