Home / 255,128,807.50-352,186,584.34-171,545,385.40

Finding the Fourth Proportional to 255,128,807.50, 352,186,584.34 and 171,545,385.40

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Solution

The fourth proportional to 255,128,807.50, 352,186,584.34 and 171,545,385.40 is: 236,805,807.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,128,807.50 : 352,186,584.34 = 171,545,385.40 : x
  2. Step 2: Convert to fraction form
    255,128,807.50/352,186,584.34 = 171,545,385.40/x
  3. Step 3: Cross multiply
    255,128,807.50x = 352,186,584.34 × 171,545,385.40
  4. Step 4: Simplify right side
    255,128,807.50x = 60,415,983,343,314,904
  5. Step 5: Solve for x
    x = 60,415,983,343,314,904/255,128,807.50
  6. Step 6: Final answer
    x = 236,805,807.76

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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.