Home / 21,290,099.24-29,393,356.74-13,854,845.72

Finding the Fourth Proportional to 21,290,099.24, 29,393,356.74 and 13,854,845.72

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Solution

The fourth proportional to 21,290,099.24, 29,393,356.74 and 13,854,845.72 is: 19,128,159.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,290,099.24 : 29,393,356.74 = 13,854,845.72 : x
  2. Step 2: Convert to fraction form
    21,290,099.24/29,393,356.74 = 13,854,845.72/x
  3. Step 3: Cross multiply
    21,290,099.24x = 29,393,356.74 × 13,854,845.72
  4. Step 4: Simplify right side
    21,290,099.24x = 407,240,422,825,622.12
  5. Step 5: Solve for x
    x = 407,240,422,825,622.12/21,290,099.24
  6. Step 6: Final answer
    x = 19,128,159.91

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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.