Home / 21,955,033.56-30,298,384.08-12,788,266.80

Finding the Fourth Proportional to 21,955,033.56, 30,298,384.08 and 12,788,266.80

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Solution

The fourth proportional to 21,955,033.56, 30,298,384.08 and 12,788,266.80 is: 17,648,063.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,955,033.56 : 30,298,384.08 = 12,788,266.80 : x
  2. Step 2: Convert to fraction form
    21,955,033.56/30,298,384.08 = 12,788,266.80/x
  3. Step 3: Cross multiply
    21,955,033.56x = 30,298,384.08 × 12,788,266.80
  4. Step 4: Simplify right side
    21,955,033.56x = 387,463,819,223,912.56
  5. Step 5: Solve for x
    x = 387,463,819,223,912.56/21,955,033.56
  6. Step 6: Final answer
    x = 17,648,063.17

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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.