Home / 21,866,043-30,174,962.20-12,077,158.28

Finding the Fourth Proportional to 21,866,043, 30,174,962.20 and 12,077,158.28

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Solution

The fourth proportional to 21,866,043, 30,174,962.20 and 12,077,158.28 is: 16,666,380.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,866,043 : 30,174,962.20 = 12,077,158.28 : x
  2. Step 2: Convert to fraction form
    21,866,043/30,174,962.20 = 12,077,158.28/x
  3. Step 3: Cross multiply
    21,866,043x = 30,174,962.20 × 12,077,158.28
  4. Step 4: Simplify right side
    21,866,043x = 364,427,794,582,417
  5. Step 5: Solve for x
    x = 364,427,794,582,417/21,866,043
  6. Step 6: Final answer
    x = 16,666,380.59

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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.