Home / 117,986,537.60-176,979,806.40-85,737,910.40

Finding the Fourth Proportional to 117,986,537.60, 176,979,806.40 and 85,737,910.40

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Solution

The fourth proportional to 117,986,537.60, 176,979,806.40 and 85,737,910.40 is: 128,606,865.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,986,537.60 : 176,979,806.40 = 85,737,910.40 : x
  2. Step 2: Convert to fraction form
    117,986,537.60/176,979,806.40 = 85,737,910.40/x
  3. Step 3: Cross multiply
    117,986,537.60x = 176,979,806.40 × 85,737,910.40
  4. Step 4: Simplify right side
    117,986,537.60x = 15,173,878,783,732,548
  5. Step 5: Solve for x
    x = 15,173,878,783,732,548/117,986,537.60
  6. Step 6: Final answer
    x = 128,606,865.60

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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.