Home / 12,387,154.59-18,580,918.77-4,300,387.21

Finding the Fourth Proportional to 12,387,154.59, 18,580,918.77 and 4,300,387.21

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Solution

The fourth proportional to 12,387,154.59, 18,580,918.77 and 4,300,387.21 is: 6,450,645.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,387,154.59 : 18,580,918.77 = 4,300,387.21 : x
  2. Step 2: Convert to fraction form
    12,387,154.59/18,580,918.77 = 4,300,387.21/x
  3. Step 3: Cross multiply
    12,387,154.59x = 18,580,918.77 × 4,300,387.21
  4. Step 4: Simplify right side
    12,387,154.59x = 79,905,145,347,265.42
  5. Step 5: Solve for x
    x = 79,905,145,347,265.42/12,387,154.59
  6. Step 6: Final answer
    x = 6,450,645.69

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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.