Home / 80,128,992.92-119,519,794.55-72,772,936.07

Finding the Fourth Proportional to 80,128,992.92, 119,519,794.55 and 72,772,936.07

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Solution

The fourth proportional to 80,128,992.92, 119,519,794.55 and 72,772,936.07 is: 108,547,556.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,128,992.92 : 119,519,794.55 = 72,772,936.07 : x
  2. Step 2: Convert to fraction form
    80,128,992.92/119,519,794.55 = 72,772,936.07/x
  3. Step 3: Cross multiply
    80,128,992.92x = 119,519,794.55 × 72,772,936.07
  4. Step 4: Simplify right side
    80,128,992.92x = 8,697,806,367,886,683
  5. Step 5: Solve for x
    x = 8,697,806,367,886,683/80,128,992.92
  6. Step 6: Final answer
    x = 108,547,556.27

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.