Home / 5,430,461.80-8,143,619.10-1,642,685.80

Finding the Fourth Proportional to 5,430,461.80, 8,143,619.10 and 1,642,685.80

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Solution

The fourth proportional to 5,430,461.80, 8,143,619.10 and 1,642,685.80 is: 2,463,401.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,430,461.80 : 8,143,619.10 = 1,642,685.80 : x
  2. Step 2: Convert to fraction form
    5,430,461.80/8,143,619.10 = 1,642,685.80/x
  3. Step 3: Cross multiply
    5,430,461.80x = 8,143,619.10 × 1,642,685.80
  4. Step 4: Simplify right side
    5,430,461.80x = 13,377,407,456,178.78
  5. Step 5: Solve for x
    x = 13,377,407,456,178.78/5,430,461.80
  6. Step 6: Final answer
    x = 2,463,401.45

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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.