Home / 19,815,427.40-29,723,141.10-8,457,024.20

Finding the Fourth Proportional to 19,815,427.40, 29,723,141.10 and 8,457,024.20

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Solution

The fourth proportional to 19,815,427.40, 29,723,141.10 and 8,457,024.20 is: 12,685,536.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,815,427.40 : 29,723,141.10 = 8,457,024.20 : x
  2. Step 2: Convert to fraction form
    19,815,427.40/29,723,141.10 = 8,457,024.20/x
  3. Step 3: Cross multiply
    19,815,427.40x = 29,723,141.10 × 8,457,024.20
  4. Step 4: Simplify right side
    19,815,427.40x = 251,369,323,582,714.62
  5. Step 5: Solve for x
    x = 251,369,323,582,714.62/19,815,427.40
  6. Step 6: Final answer
    x = 12,685,536.30

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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.