Home / 2,136,181.34-2,947,856.85-1,218,707.49

Finding the Fourth Proportional to 2,136,181.34, 2,947,856.85 and 1,218,707.49

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Solution

The fourth proportional to 2,136,181.34, 2,947,856.85 and 1,218,707.49 is: 1,681,774.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,136,181.34 : 2,947,856.85 = 1,218,707.49 : x
  2. Step 2: Convert to fraction form
    2,136,181.34/2,947,856.85 = 1,218,707.49/x
  3. Step 3: Cross multiply
    2,136,181.34x = 2,947,856.85 × 1,218,707.49
  4. Step 4: Simplify right side
    2,136,181.34x = 3,592,575,222,542.81
  5. Step 5: Solve for x
    x = 3,592,575,222,542.81/2,136,181.34
  6. Step 6: Final answer
    x = 1,681,774.47

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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.