Home / 2,159,139.40-3,237,153.90-1,212,800.20

Finding the Fourth Proportional to 2,159,139.40, 3,237,153.90 and 1,212,800.20

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Solution

The fourth proportional to 2,159,139.40, 3,237,153.90 and 1,212,800.20 is: 1,818,326.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,159,139.40 : 3,237,153.90 = 1,212,800.20 : x
  2. Step 2: Convert to fraction form
    2,159,139.40/3,237,153.90 = 1,212,800.20/x
  3. Step 3: Cross multiply
    2,159,139.40x = 3,237,153.90 × 1,212,800.20
  4. Step 4: Simplify right side
    2,159,139.40x = 3,926,020,897,350.78
  5. Step 5: Solve for x
    x = 3,926,020,897,350.78/2,159,139.40
  6. Step 6: Final answer
    x = 1,818,326.74

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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.