Home / 12,476,907.70-18,722,359.95-5,287,218.10

Finding the Fourth Proportional to 12,476,907.70, 18,722,359.95 and 5,287,218.10

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Solution

The fourth proportional to 12,476,907.70, 18,722,359.95 and 5,287,218.10 is: 7,933,792.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,476,907.70 : 18,722,359.95 = 5,287,218.10 : x
  2. Step 2: Convert to fraction form
    12,476,907.70/18,722,359.95 = 5,287,218.10/x
  3. Step 3: Cross multiply
    12,476,907.70x = 18,722,359.95 × 5,287,218.10
  4. Step 4: Simplify right side
    12,476,907.70x = 98,989,200,402,355.08
  5. Step 5: Solve for x
    x = 98,989,200,402,355.08/12,476,907.70
  6. Step 6: Final answer
    x = 7,933,792.79

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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.