Home / 13,291,962.77-18,342,925.07-7,180,391.27

Finding the Fourth Proportional to 13,291,962.77, 18,342,925.07 and 7,180,391.27

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Solution

The fourth proportional to 13,291,962.77, 18,342,925.07 and 7,180,391.27 is: 9,908,948.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,291,962.77 : 18,342,925.07 = 7,180,391.27 : x
  2. Step 2: Convert to fraction form
    13,291,962.77/18,342,925.07 = 7,180,391.27/x
  3. Step 3: Cross multiply
    13,291,962.77x = 18,342,925.07 × 7,180,391.27
  4. Step 4: Simplify right side
    13,291,962.77x = 131,709,379,048,847.50
  5. Step 5: Solve for x
    x = 131,709,379,048,847.50/13,291,962.77
  6. Step 6: Final answer
    x = 9,908,948.84

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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.