Home / 3,720,980.70-5,581,471.05-3,671,214.30

Finding the Fourth Proportional to 3,720,980.70, 5,581,471.05 and 3,671,214.30

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Solution

The fourth proportional to 3,720,980.70, 5,581,471.05 and 3,671,214.30 is: 5,506,821.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720,980.70 : 5,581,471.05 = 3,671,214.30 : x
  2. Step 2: Convert to fraction form
    3,720,980.70/5,581,471.05 = 3,671,214.30/x
  3. Step 3: Cross multiply
    3,720,980.70x = 5,581,471.05 × 3,671,214.30
  4. Step 4: Simplify right side
    3,720,980.70x = 20,490,776,333,796.01
  5. Step 5: Solve for x
    x = 20,490,776,333,796.01/3,720,980.70
  6. Step 6: Final answer
    x = 5,506,821.45

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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.