Home / 21,508,712.20-32,263,068.30-19,717,121.80

Finding the Fourth Proportional to 21,508,712.20, 32,263,068.30 and 19,717,121.80

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Solution

The fourth proportional to 21,508,712.20, 32,263,068.30 and 19,717,121.80 is: 29,575,682.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,508,712.20 : 32,263,068.30 = 19,717,121.80 : x
  2. Step 2: Convert to fraction form
    21,508,712.20/32,263,068.30 = 19,717,121.80/x
  3. Step 3: Cross multiply
    21,508,712.20x = 32,263,068.30 × 19,717,121.80
  4. Step 4: Simplify right side
    21,508,712.20x = 636,134,847,312,819
  5. Step 5: Solve for x
    x = 636,134,847,312,819/21,508,712.20
  6. Step 6: Final answer
    x = 29,575,682.70

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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.