Home / 233,137,831.77-321,723,794.03-128,714,005.53

Finding the Fourth Proportional to 233,137,831.77, 321,723,794.03 and 128,714,005.53

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Solution

The fourth proportional to 233,137,831.77, 321,723,794.03 and 128,714,005.53 is: 177,621,786.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    233,137,831.77 : 321,723,794.03 = 128,714,005.53 : x
  2. Step 2: Convert to fraction form
    233,137,831.77/321,723,794.03 = 128,714,005.53/x
  3. Step 3: Cross multiply
    233,137,831.77x = 321,723,794.03 × 128,714,005.53
  4. Step 4: Simplify right side
    233,137,831.77x = 41,410,358,203,266,432
  5. Step 5: Solve for x
    x = 41,410,358,203,266,432/233,137,831.77
  6. Step 6: Final answer
    x = 177,621,786.60

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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.