Home / 254,385,831.72-381,370,240.50-90,530,282.28

Finding the Fourth Proportional to 254,385,831.72, 381,370,240.50 and 90,530,282.28

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Solution

The fourth proportional to 254,385,831.72, 381,370,240.50 and 90,530,282.28 is: 135,721,220.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,385,831.72 : 381,370,240.50 = 90,530,282.28 : x
  2. Step 2: Convert to fraction form
    254,385,831.72/381,370,240.50 = 90,530,282.28/x
  3. Step 3: Cross multiply
    254,385,831.72x = 381,370,240.50 × 90,530,282.28
  4. Step 4: Simplify right side
    254,385,831.72x = 34,525,555,525,656,488
  5. Step 5: Solve for x
    x = 34,525,555,525,656,488/254,385,831.72
  6. Step 6: Final answer
    x = 135,721,220.37

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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.