Home / 3,551,574.90-5,328,139.95-1,421,123.70

Finding the Fourth Proportional to 3,551,574.90, 5,328,139.95 and 1,421,123.70

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Solution

The fourth proportional to 3,551,574.90, 5,328,139.95 and 1,421,123.70 is: 2,131,996.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,551,574.90 : 5,328,139.95 = 1,421,123.70 : x
  2. Step 2: Convert to fraction form
    3,551,574.90/5,328,139.95 = 1,421,123.70/x
  3. Step 3: Cross multiply
    3,551,574.90x = 5,328,139.95 × 1,421,123.70
  4. Step 4: Simplify right side
    3,551,574.90x = 7,571,945,959,861.82
  5. Step 5: Solve for x
    x = 7,571,945,959,861.82/3,551,574.90
  6. Step 6: Final answer
    x = 2,131,996.70

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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.