Home / 3,672,938.40-5,509,407.60-2,777,143.20

Finding the Fourth Proportional to 3,672,938.40, 5,509,407.60 and 2,777,143.20

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Solution

The fourth proportional to 3,672,938.40, 5,509,407.60 and 2,777,143.20 is: 4,165,714.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,672,938.40 : 5,509,407.60 = 2,777,143.20 : x
  2. Step 2: Convert to fraction form
    3,672,938.40/5,509,407.60 = 2,777,143.20/x
  3. Step 3: Cross multiply
    3,672,938.40x = 5,509,407.60 × 2,777,143.20
  4. Step 4: Simplify right side
    3,672,938.40x = 15,300,413,852,368.32
  5. Step 5: Solve for x
    x = 15,300,413,852,368.32/3,672,938.40
  6. Step 6: Final answer
    x = 4,165,714.80

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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.