Home / 65,720,137.88-90,687,703.92-36,350,838.38

Finding the Fourth Proportional to 65,720,137.88, 90,687,703.92 and 36,350,838.38

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Solution

The fourth proportional to 65,720,137.88, 90,687,703.92 and 36,350,838.38 is: 50,160,790.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,720,137.88 : 90,687,703.92 = 36,350,838.38 : x
  2. Step 2: Convert to fraction form
    65,720,137.88/90,687,703.92 = 36,350,838.38/x
  3. Step 3: Cross multiply
    65,720,137.88x = 90,687,703.92 × 36,350,838.38
  4. Step 4: Simplify right side
    65,720,137.88x = 3,296,574,068,249,213
  5. Step 5: Solve for x
    x = 3,296,574,068,249,213/65,720,137.88
  6. Step 6: Final answer
    x = 50,160,790.51

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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.