Home / 21,194,965.37-29,249,758.70-11,904,172.68

Finding the Fourth Proportional to 21,194,965.37, 29,249,758.70 and 11,904,172.68

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Solution

The fourth proportional to 21,194,965.37, 29,249,758.70 and 11,904,172.68 is: 16,428,155.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,194,965.37 : 29,249,758.70 = 11,904,172.68 : x
  2. Step 2: Convert to fraction form
    21,194,965.37/29,249,758.70 = 11,904,172.68/x
  3. Step 3: Cross multiply
    21,194,965.37x = 29,249,758.70 × 11,904,172.68
  4. Step 4: Simplify right side
    21,194,965.37x = 348,194,178,353,611.44
  5. Step 5: Solve for x
    x = 348,194,178,353,611.44/21,194,965.37
  6. Step 6: Final answer
    x = 16,428,155.10

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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.