Home / 13,391,878.24-18,480,007.20-7,280,253.28

Finding the Fourth Proportional to 13,391,878.24, 18,480,007.20 and 7,280,253.28

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Solution

The fourth proportional to 13,391,878.24, 18,480,007.20 and 7,280,253.28 is: 10,046,322.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,391,878.24 : 18,480,007.20 = 7,280,253.28 : x
  2. Step 2: Convert to fraction form
    13,391,878.24/18,480,007.20 = 7,280,253.28/x
  3. Step 3: Cross multiply
    13,391,878.24x = 18,480,007.20 × 7,280,253.28
  4. Step 4: Simplify right side
    13,391,878.24x = 134,539,133,032,223.61
  5. Step 5: Solve for x
    x = 134,539,133,032,223.61/13,391,878.24
  6. Step 6: Final answer
    x = 10,046,322.90

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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.