Home / 1,408,921,746.57-2,111,544,166.19-787,111,861.73

Finding the Fourth Proportional to 1,408,921,746.57, 2,111,544,166.19 and 787,111,861.73

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Solution

The fourth proportional to 1,408,921,746.57, 2,111,544,166.19 and 787,111,861.73 is: 1,179,640,717.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,408,921,746.57 : 2,111,544,166.19 = 787,111,861.73 : x
  2. Step 2: Convert to fraction form
    1,408,921,746.57/2,111,544,166.19 = 787,111,861.73/x
  3. Step 3: Cross multiply
    1,408,921,746.57x = 2,111,544,166.19 × 787,111,861.73
  4. Step 4: Simplify right side
    1,408,921,746.57x = 1,662,021,459,760,438,272
  5. Step 5: Solve for x
    x = 1,662,021,459,760,438,272/1,408,921,746.57
  6. Step 6: Final answer
    x = 1,179,640,717.31

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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.