Home / 20,143,145.30-30,214,717.95-17,403,271.70

Finding the Fourth Proportional to 20,143,145.30, 30,214,717.95 and 17,403,271.70

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Solution

The fourth proportional to 20,143,145.30, 30,214,717.95 and 17,403,271.70 is: 26,104,907.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,143,145.30 : 30,214,717.95 = 17,403,271.70 : x
  2. Step 2: Convert to fraction form
    20,143,145.30/30,214,717.95 = 17,403,271.70/x
  3. Step 3: Cross multiply
    20,143,145.30x = 30,214,717.95 × 17,403,271.70
  4. Step 4: Simplify right side
    20,143,145.30x = 525,834,945,822,717
  5. Step 5: Solve for x
    x = 525,834,945,822,717/20,143,145.30
  6. Step 6: Final answer
    x = 26,104,907.55

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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.