Home / 117,431,135.20-176,146,702.80-73,782,114.40

Finding the Fourth Proportional to 117,431,135.20, 176,146,702.80 and 73,782,114.40

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Solution

The fourth proportional to 117,431,135.20, 176,146,702.80 and 73,782,114.40 is: 110,673,171.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,431,135.20 : 176,146,702.80 = 73,782,114.40 : x
  2. Step 2: Convert to fraction form
    117,431,135.20/176,146,702.80 = 73,782,114.40/x
  3. Step 3: Cross multiply
    117,431,135.20x = 176,146,702.80 × 73,782,114.40
  4. Step 4: Simplify right side
    117,431,135.20x = 12,996,476,177,172,402
  5. Step 5: Solve for x
    x = 12,996,476,177,172,402/117,431,135.20
  6. Step 6: Final answer
    x = 110,673,171.60

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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.