Home / 2,013,440.80-3,020,161.20-1,920,128.80

Finding the Fourth Proportional to 2,013,440.80, 3,020,161.20 and 1,920,128.80

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Solution

The fourth proportional to 2,013,440.80, 3,020,161.20 and 1,920,128.80 is: 2,880,193.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,013,440.80 : 3,020,161.20 = 1,920,128.80 : x
  2. Step 2: Convert to fraction form
    2,013,440.80/3,020,161.20 = 1,920,128.80/x
  3. Step 3: Cross multiply
    2,013,440.80x = 3,020,161.20 × 1,920,128.80
  4. Step 4: Simplify right side
    2,013,440.80x = 5,799,098,500,762.56
  5. Step 5: Solve for x
    x = 5,799,098,500,762.56/2,013,440.80
  6. Step 6: Final answer
    x = 2,880,193.20

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1.5x scale

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.