Home / 21,920,980.34-30,251,010.32-12,132,099.56

Finding the Fourth Proportional to 21,920,980.34, 30,251,010.32 and 12,132,099.56

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Solution

The fourth proportional to 21,920,980.34, 30,251,010.32 and 12,132,099.56 is: 16,742,329.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,920,980.34 : 30,251,010.32 = 12,132,099.56 : x
  2. Step 2: Convert to fraction form
    21,920,980.34/30,251,010.32 = 12,132,099.56/x
  3. Step 3: Cross multiply
    21,920,980.34x = 30,251,010.32 × 12,132,099.56
  4. Step 4: Simplify right side
    21,920,980.34x = 367,008,268,780,911.94
  5. Step 5: Solve for x
    x = 367,008,268,780,911.94/21,920,980.34
  6. Step 6: Final answer
    x = 16,742,329.18

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1.5x scale

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.