Home / 401,661,756.76-554,262,831.38-225,415,701.55

Finding the Fourth Proportional to 401,661,756.76, 554,262,831.38 and 225,415,701.55

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Solution

The fourth proportional to 401,661,756.76, 554,262,831.38 and 225,415,701.55 is: 311,056,611.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,661,756.76 : 554,262,831.38 = 225,415,701.55 : x
  2. Step 2: Convert to fraction form
    401,661,756.76/554,262,831.38 = 225,415,701.55/x
  3. Step 3: Cross multiply
    401,661,756.76x = 554,262,831.38 × 225,415,701.55
  4. Step 4: Simplify right side
    401,661,756.76x = 124,939,544,976,124,544
  5. Step 5: Solve for x
    x = 124,939,544,976,124,544/401,661,756.76
  6. Step 6: Final answer
    x = 311,056,611.38

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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.