Home / 112,620,631.32-155,470,363.43-75,006,391.27

Finding the Fourth Proportional to 112,620,631.32, 155,470,363.43 and 75,006,391.27

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Solution

The fourth proportional to 112,620,631.32, 155,470,363.43 and 75,006,391.27 is: 103,544,712.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,620,631.32 : 155,470,363.43 = 75,006,391.27 : x
  2. Step 2: Convert to fraction form
    112,620,631.32/155,470,363.43 = 75,006,391.27/x
  3. Step 3: Cross multiply
    112,620,631.32x = 155,470,363.43 × 75,006,391.27
  4. Step 4: Simplify right side
    112,620,631.32x = 11,661,270,909,977,508
  5. Step 5: Solve for x
    x = 11,661,270,909,977,508/112,620,631.32
  6. Step 6: Final answer
    x = 103,544,712.67

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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.