Home / 231,173,525.36-319,033,797.72-128,157,077.36

Finding the Fourth Proportional to 231,173,525.36, 319,033,797.72 and 128,157,077.36

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Solution

The fourth proportional to 231,173,525.36, 319,033,797.72 and 128,157,077.36 is: 176,864,712.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,173,525.36 : 319,033,797.72 = 128,157,077.36 : x
  2. Step 2: Convert to fraction form
    231,173,525.36/319,033,797.72 = 128,157,077.36/x
  3. Step 3: Cross multiply
    231,173,525.36x = 319,033,797.72 × 128,157,077.36
  4. Step 4: Simplify right side
    231,173,525.36x = 40,886,439,094,856,632
  5. Step 5: Solve for x
    x = 40,886,439,094,856,632/231,173,525.36
  6. Step 6: Final answer
    x = 176,864,712.48

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1.5x scale

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.