Home / 21,432,021.37-29,577,002.61-12,012,983.14

Finding the Fourth Proportional to 21,432,021.37, 29,577,002.61 and 12,012,983.14

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Solution

The fourth proportional to 21,432,021.37, 29,577,002.61 and 12,012,983.14 is: 16,578,372.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,432,021.37 : 29,577,002.61 = 12,012,983.14 : x
  2. Step 2: Convert to fraction form
    21,432,021.37/29,577,002.61 = 12,012,983.14/x
  3. Step 3: Cross multiply
    21,432,021.37x = 29,577,002.61 × 12,012,983.14
  4. Step 4: Simplify right side
    21,432,021.37x = 355,308,033,685,666
  5. Step 5: Solve for x
    x = 355,308,033,685,666/21,432,021.37
  6. Step 6: Final answer
    x = 16,578,372.50

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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.