Home / 21,418,246.20-32,080,130.10-12,883,697.40

Finding the Fourth Proportional to 21,418,246.20, 32,080,130.10 and 12,883,697.40

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Solution

The fourth proportional to 21,418,246.20, 32,080,130.10 and 12,883,697.40 is: 19,297,130.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,418,246.20 : 32,080,130.10 = 12,883,697.40 : x
  2. Step 2: Convert to fraction form
    21,418,246.20/32,080,130.10 = 12,883,697.40/x
  3. Step 3: Cross multiply
    21,418,246.20x = 32,080,130.10 × 12,883,697.40
  4. Step 4: Simplify right side
    21,418,246.20x = 413,310,688,761,031.75
  5. Step 5: Solve for x
    x = 413,310,688,761,031.75/21,418,246.20
  6. Step 6: Final answer
    x = 19,297,130.35

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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.