Home / 21,918,579.30-30,250,851.96-12,624,340.50

Finding the Fourth Proportional to 21,918,579.30, 30,250,851.96 and 12,624,340.50

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Solution

The fourth proportional to 21,918,579.30, 30,250,851.96 and 12,624,340.50 is: 17,423,440.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,918,579.30 : 30,250,851.96 = 12,624,340.50 : x
  2. Step 2: Convert to fraction form
    21,918,579.30/30,250,851.96 = 12,624,340.50/x
  3. Step 3: Cross multiply
    21,918,579.30x = 30,250,851.96 × 12,624,340.50
  4. Step 4: Simplify right side
    21,918,579.30x = 381,897,055,558,132.38
  5. Step 5: Solve for x
    x = 381,897,055,558,132.38/21,918,579.30
  6. Step 6: Final answer
    x = 17,423,440.19

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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.