Home / 21,920,990.46-30,251,024.28-12,132,109.68

Finding the Fourth Proportional to 21,920,990.46, 30,251,024.28 and 12,132,109.68

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Solution

The fourth proportional to 21,920,990.46, 30,251,024.28 and 12,132,109.68 is: 16,742,343.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,920,990.46 : 30,251,024.28 = 12,132,109.68 : x
  2. Step 2: Convert to fraction form
    21,920,990.46/30,251,024.28 = 12,132,109.68/x
  3. Step 3: Cross multiply
    21,920,990.46x = 30,251,024.28 × 12,132,109.68
  4. Step 4: Simplify right side
    21,920,990.46x = 367,008,744,497,303.06
  5. Step 5: Solve for x
    x = 367,008,744,497,303.06/21,920,990.46
  6. Step 6: Final answer
    x = 16,742,343.15

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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.