Home / 13,565,646.78-18,720,588.24-7,454,468.94

Finding the Fourth Proportional to 13,565,646.78, 18,720,588.24 and 7,454,468.94

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Solution

The fourth proportional to 13,565,646.78, 18,720,588.24 and 7,454,468.94 is: 10,287,164.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,565,646.78 : 18,720,588.24 = 7,454,468.94 : x
  2. Step 2: Convert to fraction form
    13,565,646.78/18,720,588.24 = 7,454,468.94/x
  3. Step 3: Cross multiply
    13,565,646.78x = 18,720,588.24 × 7,454,468.94
  4. Step 4: Simplify right side
    13,565,646.78x = 139,552,043,573,609.27
  5. Step 5: Solve for x
    x = 139,552,043,573,609.27/13,565,646.78
  6. Step 6: Final answer
    x = 10,287,164.77

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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.