Home / 2,133,157.78-3,199,386.35-918,407.37

Finding the Fourth Proportional to 2,133,157.78, 3,199,386.35 and 918,407.37

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Solution

The fourth proportional to 2,133,157.78, 3,199,386.35 and 918,407.37 is: 1,377,460.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,133,157.78 : 3,199,386.35 = 918,407.37 : x
  2. Step 2: Convert to fraction form
    2,133,157.78/3,199,386.35 = 918,407.37/x
  3. Step 3: Cross multiply
    2,133,157.78x = 3,199,386.35 × 918,407.37
  4. Step 4: Simplify right side
    2,133,157.78x = 2,938,340,017,611.12
  5. Step 5: Solve for x
    x = 2,938,340,017,611.12/2,133,157.78
  6. Step 6: Final answer
    x = 1,377,460.23

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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.