Home / 21,381,012.12-29,530,154.40-14,493,536.76

Finding the Fourth Proportional to 21,381,012.12, 29,530,154.40 and 14,493,536.76

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Solution

The fourth proportional to 21,381,012.12, 29,530,154.40 and 14,493,536.76 is: 20,017,592.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,381,012.12 : 29,530,154.40 = 14,493,536.76 : x
  2. Step 2: Convert to fraction form
    21,381,012.12/29,530,154.40 = 14,493,536.76/x
  3. Step 3: Cross multiply
    21,381,012.12x = 29,530,154.40 × 14,493,536.76
  4. Step 4: Simplify right side
    21,381,012.12x = 427,996,378,324,875.69
  5. Step 5: Solve for x
    x = 427,996,378,324,875.69/21,381,012.12
  6. Step 6: Final answer
    x = 20,017,592.05

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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.