Home / 12,045,922.40-18,075,007.20-8,005,221.20

Finding the Fourth Proportional to 12,045,922.40, 18,075,007.20 and 8,005,221.20

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Solution

The fourth proportional to 12,045,922.40, 18,075,007.20 and 8,005,221.20 is: 12,011,901.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,045,922.40 : 18,075,007.20 = 8,005,221.20 : x
  2. Step 2: Convert to fraction form
    12,045,922.40/18,075,007.20 = 8,005,221.20/x
  3. Step 3: Cross multiply
    12,045,922.40x = 18,075,007.20 × 8,005,221.20
  4. Step 4: Simplify right side
    12,045,922.40x = 144,694,430,827,592.62
  5. Step 5: Solve for x
    x = 144,694,430,827,592.62/12,045,922.40
  6. Step 6: Final answer
    x = 12,011,901.29

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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.