Home / 15,348,339.24-21,180,153.10-8,472,673.68

Finding the Fourth Proportional to 15,348,339.24, 21,180,153.10 and 8,472,673.68

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Solution

The fourth proportional to 15,348,339.24, 21,180,153.10 and 8,472,673.68 is: 11,691,983.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,348,339.24 : 21,180,153.10 = 8,472,673.68 : x
  2. Step 2: Convert to fraction form
    15,348,339.24/21,180,153.10 = 8,472,673.68/x
  3. Step 3: Cross multiply
    15,348,339.24x = 21,180,153.10 × 8,472,673.68
  4. Step 4: Simplify right side
    15,348,339.24x = 179,452,525,708,740.41
  5. Step 5: Solve for x
    x = 179,452,525,708,740.41/15,348,339.24
  6. Step 6: Final answer
    x = 11,691,983.28

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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.