Home / 12,228,907.20-18,343,360.80-9,403,281.60

Finding the Fourth Proportional to 12,228,907.20, 18,343,360.80 and 9,403,281.60

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Solution

The fourth proportional to 12,228,907.20, 18,343,360.80 and 9,403,281.60 is: 14,104,922.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,228,907.20 : 18,343,360.80 = 9,403,281.60 : x
  2. Step 2: Convert to fraction form
    12,228,907.20/18,343,360.80 = 9,403,281.60/x
  3. Step 3: Cross multiply
    12,228,907.20x = 18,343,360.80 × 9,403,281.60
  4. Step 4: Simplify right side
    12,228,907.20x = 172,487,787,092,801.28
  5. Step 5: Solve for x
    x = 172,487,787,092,801.28/12,228,907.20
  6. Step 6: Final answer
    x = 14,104,922.40

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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.