Home / 21,009,469.24-28,995,296.46-12,314,946.84

Finding the Fourth Proportional to 21,009,469.24, 28,995,296.46 and 12,314,946.84

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Solution

The fourth proportional to 21,009,469.24, 28,995,296.46 and 12,314,946.84 is: 16,995,933.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,009,469.24 : 28,995,296.46 = 12,314,946.84 : x
  2. Step 2: Convert to fraction form
    21,009,469.24/28,995,296.46 = 12,314,946.84/x
  3. Step 3: Cross multiply
    21,009,469.24x = 28,995,296.46 × 12,314,946.84
  4. Step 4: Simplify right side
    21,009,469.24x = 357,075,534,514,940.19
  5. Step 5: Solve for x
    x = 357,075,534,514,940.19/21,009,469.24
  6. Step 6: Final answer
    x = 16,995,933.14

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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.