Home / 171,909,057.38-257,701,485.56-85,565,838.11

Finding the Fourth Proportional to 171,909,057.38, 257,701,485.56 and 85,565,838.11

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Solution

The fourth proportional to 171,909,057.38, 257,701,485.56 and 85,565,838.11 is: 128,268,073.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,909,057.38 : 257,701,485.56 = 85,565,838.11 : x
  2. Step 2: Convert to fraction form
    171,909,057.38/257,701,485.56 = 85,565,838.11/x
  3. Step 3: Cross multiply
    171,909,057.38x = 257,701,485.56 × 85,565,838.11
  4. Step 4: Simplify right side
    171,909,057.38x = 22,050,443,592,417,128
  5. Step 5: Solve for x
    x = 22,050,443,592,417,128/171,909,057.38
  6. Step 6: Final answer
    x = 128,268,073.42

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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.