Home / 13,280,860.62-18,327,339.93-7,238,997.30

Finding the Fourth Proportional to 13,280,860.62, 18,327,339.93 and 7,238,997.30

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Solution

The fourth proportional to 13,280,860.62, 18,327,339.93 and 7,238,997.30 is: 9,989,681.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,280,860.62 : 18,327,339.93 = 7,238,997.30 : x
  2. Step 2: Convert to fraction form
    13,280,860.62/18,327,339.93 = 7,238,997.30/x
  3. Step 3: Cross multiply
    13,280,860.62x = 18,327,339.93 × 7,238,997.30
  4. Step 4: Simplify right side
    13,280,860.62x = 132,671,564,269,452.19
  5. Step 5: Solve for x
    x = 132,671,564,269,452.19/13,280,860.62
  6. Step 6: Final answer
    x = 9,989,681.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.