Home / 21,303,946.80-31,955,920.20-13,226,043.60

Finding the Fourth Proportional to 21,303,946.80, 31,955,920.20 and 13,226,043.60

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Solution

The fourth proportional to 21,303,946.80, 31,955,920.20 and 13,226,043.60 is: 19,839,065.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,303,946.80 : 31,955,920.20 = 13,226,043.60 : x
  2. Step 2: Convert to fraction form
    21,303,946.80/31,955,920.20 = 13,226,043.60/x
  3. Step 3: Cross multiply
    21,303,946.80x = 31,955,920.20 × 13,226,043.60
  4. Step 4: Simplify right side
    21,303,946.80x = 422,650,393,843,320.69
  5. Step 5: Solve for x
    x = 422,650,393,843,320.69/21,303,946.80
  6. Step 6: Final answer
    x = 19,839,065.40

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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.