Home / 28,189,504.80-42,252,764.40-12,012,703.20

Finding the Fourth Proportional to 28,189,504.80, 42,252,764.40 and 12,012,703.20

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Solution

The fourth proportional to 28,189,504.80, 42,252,764.40 and 12,012,703.20 is: 18,005,634.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,189,504.80 : 42,252,764.40 = 12,012,703.20 : x
  2. Step 2: Convert to fraction form
    28,189,504.80/42,252,764.40 = 12,012,703.20/x
  3. Step 3: Cross multiply
    28,189,504.80x = 42,252,764.40 × 12,012,703.20
  4. Step 4: Simplify right side
    28,189,504.80x = 507,569,918,116,726
  5. Step 5: Solve for x
    x = 507,569,918,116,726/28,189,504.80
  6. Step 6: Final answer
    x = 18,005,634.43

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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.