Home / 21,107,429.40-31,661,144.10-14,388,965.40

Finding the Fourth Proportional to 21,107,429.40, 31,661,144.10 and 14,388,965.40

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Solution

The fourth proportional to 21,107,429.40, 31,661,144.10 and 14,388,965.40 is: 21,583,448.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,107,429.40 : 31,661,144.10 = 14,388,965.40 : x
  2. Step 2: Convert to fraction form
    21,107,429.40/31,661,144.10 = 14,388,965.40/x
  3. Step 3: Cross multiply
    21,107,429.40x = 31,661,144.10 × 14,388,965.40
  4. Step 4: Simplify right side
    21,107,429.40x = 455,571,106,979,314.19
  5. Step 5: Solve for x
    x = 455,571,106,979,314.19/21,107,429.40
  6. Step 6: Final answer
    x = 21,583,448.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.