Home / 7,109,686.80-10,664,530.20-4,239,905.40

Finding the Fourth Proportional to 7,109,686.80, 10,664,530.20 and 4,239,905.40

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Solution

The fourth proportional to 7,109,686.80, 10,664,530.20 and 4,239,905.40 is: 6,359,858.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,109,686.80 : 10,664,530.20 = 4,239,905.40 : x
  2. Step 2: Convert to fraction form
    7,109,686.80/10,664,530.20 = 4,239,905.40/x
  3. Step 3: Cross multiply
    7,109,686.80x = 10,664,530.20 × 4,239,905.40
  4. Step 4: Simplify right side
    7,109,686.80x = 45,216,599,183,443.08
  5. Step 5: Solve for x
    x = 45,216,599,183,443.08/7,109,686.80
  6. Step 6: Final answer
    x = 6,359,858.10

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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.