Home / 2,982,438.72-4,116,136.08-1,693,693.20

Finding the Fourth Proportional to 2,982,438.72, 4,116,136.08 and 1,693,693.20

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Solution

The fourth proportional to 2,982,438.72, 4,116,136.08 and 1,693,693.20 is: 2,337,507.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,982,438.72 : 4,116,136.08 = 1,693,693.20 : x
  2. Step 2: Convert to fraction form
    2,982,438.72/4,116,136.08 = 1,693,693.20/x
  3. Step 3: Cross multiply
    2,982,438.72x = 4,116,136.08 × 1,693,693.20
  4. Step 4: Simplify right side
    2,982,438.72x = 6,971,471,688,970.66
  5. Step 5: Solve for x
    x = 6,971,471,688,970.66/2,982,438.72
  6. Step 6: Final answer
    x = 2,337,507.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.