Home / 28,130,971.10-42,196,219.61-21,988,119.77

Finding the Fourth Proportional to 28,130,971.10, 42,196,219.61 and 21,988,119.77

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Solution

The fourth proportional to 28,130,971.10, 42,196,219.61 and 21,988,119.77 is: 32,981,994.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,130,971.10 : 42,196,219.61 = 21,988,119.77 : x
  2. Step 2: Convert to fraction form
    28,130,971.10/42,196,219.61 = 21,988,119.77/x
  3. Step 3: Cross multiply
    28,130,971.10x = 42,196,219.61 × 21,988,119.77
  4. Step 4: Simplify right side
    28,130,971.10x = 927,815,530,786,363.50
  5. Step 5: Solve for x
    x = 927,815,530,786,363.50/28,130,971.10
  6. Step 6: Final answer
    x = 32,981,994.38

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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.