Home / 10,530,813.79-15,802,049.49-5,139,508.87

Finding the Fourth Proportional to 10,530,813.79, 15,802,049.49 and 5,139,508.87

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Solution

The fourth proportional to 10,530,813.79, 15,802,049.49 and 5,139,508.87 is: 7,712,108.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,530,813.79 : 15,802,049.49 = 5,139,508.87 : x
  2. Step 2: Convert to fraction form
    10,530,813.79/15,802,049.49 = 5,139,508.87/x
  3. Step 3: Cross multiply
    10,530,813.79x = 15,802,049.49 × 5,139,508.87
  4. Step 4: Simplify right side
    10,530,813.79x = 81,214,773,518,033.98
  5. Step 5: Solve for x
    x = 81,214,773,518,033.98/10,530,813.79
  6. Step 6: Final answer
    x = 7,712,108.02

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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.