Home / 2,178,014.80-3,267,605.40-1,942,985.20

Finding the Fourth Proportional to 2,178,014.80, 3,267,605.40 and 1,942,985.20

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Solution

The fourth proportional to 2,178,014.80, 3,267,605.40 and 1,942,985.20 is: 2,914,998.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,178,014.80 : 3,267,605.40 = 1,942,985.20 : x
  2. Step 2: Convert to fraction form
    2,178,014.80/3,267,605.40 = 1,942,985.20/x
  3. Step 3: Cross multiply
    2,178,014.80x = 3,267,605.40 × 1,942,985.20
  4. Step 4: Simplify right side
    2,178,014.80x = 6,348,908,931,640.08
  5. Step 5: Solve for x
    x = 6,348,908,931,640.08/2,178,014.80
  6. Step 6: Final answer
    x = 2,914,998.07

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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.