Home / 85,892,340-118,531,429.20-47,261,172

Finding the Fourth Proportional to 85,892,340, 118,531,429.20 and 47,261,172

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Solution

The fourth proportional to 85,892,340, 118,531,429.20 and 47,261,172 is: 65,220,417.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,892,340 : 118,531,429.20 = 47,261,172 : x
  2. Step 2: Convert to fraction form
    85,892,340/118,531,429.20 = 47,261,172/x
  3. Step 3: Cross multiply
    85,892,340x = 118,531,429.20 × 47,261,172
  4. Step 4: Simplify right side
    85,892,340x = 5,601,934,262,827,023
  5. Step 5: Solve for x
    x = 5,601,934,262,827,023/85,892,340
  6. Step 6: Final answer
    x = 65,220,417.36

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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.