Home / 80,685,854.60-111,337,893.50-45,403,043.56

Finding the Fourth Proportional to 80,685,854.60, 111,337,893.50 and 45,403,043.56

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Solution

The fourth proportional to 80,685,854.60, 111,337,893.50 and 45,403,043.56 is: 62,651,368.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,685,854.60 : 111,337,893.50 = 45,403,043.56 : x
  2. Step 2: Convert to fraction form
    80,685,854.60/111,337,893.50 = 45,403,043.56/x
  3. Step 3: Cross multiply
    80,685,854.60x = 111,337,893.50 × 45,403,043.56
  4. Step 4: Simplify right side
    80,685,854.60x = 5,055,079,228,459,141
  5. Step 5: Solve for x
    x = 5,055,079,228,459,141/80,685,854.60
  6. Step 6: Final answer
    x = 62,651,368.74

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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.