Home / 10,530,809.79-15,802,043.46-5,139,504.87

Finding the Fourth Proportional to 10,530,809.79, 15,802,043.46 and 5,139,504.87

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Solution

The fourth proportional to 10,530,809.79, 15,802,043.46 and 5,139,504.87 is: 7,712,102.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,530,809.79 : 15,802,043.46 = 5,139,504.87 : x
  2. Step 2: Convert to fraction form
    10,530,809.79/15,802,043.46 = 5,139,504.87/x
  3. Step 3: Cross multiply
    10,530,809.79x = 15,802,043.46 × 5,139,504.87
  4. Step 4: Simplify right side
    10,530,809.79x = 81,214,679,318,621.66
  5. Step 5: Solve for x
    x = 81,214,679,318,621.66/10,530,809.79
  6. Step 6: Final answer
    x = 7,712,102.01

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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.