Home / 120,043,939.32-165,658,472.28-67,831,851.24

Finding the Fourth Proportional to 120,043,939.32, 165,658,472.28 and 67,831,851.24

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Solution

The fourth proportional to 120,043,939.32, 165,658,472.28 and 67,831,851.24 is: 93,606,731.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,043,939.32 : 165,658,472.28 = 67,831,851.24 : x
  2. Step 2: Convert to fraction form
    120,043,939.32/165,658,472.28 = 67,831,851.24/x
  3. Step 3: Cross multiply
    120,043,939.32x = 165,658,472.28 × 67,831,851.24
  4. Step 4: Simplify right side
    120,043,939.32x = 11,236,920,848,342,622
  5. Step 5: Solve for x
    x = 11,236,920,848,342,622/120,043,939.32
  6. Step 6: Final answer
    x = 93,606,731.93

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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.