Home / 19,412,021.40-29,118,032.10-9,309,442.20

Finding the Fourth Proportional to 19,412,021.40, 29,118,032.10 and 9,309,442.20

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Solution

The fourth proportional to 19,412,021.40, 29,118,032.10 and 9,309,442.20 is: 13,964,163.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,412,021.40 : 29,118,032.10 = 9,309,442.20 : x
  2. Step 2: Convert to fraction form
    19,412,021.40/29,118,032.10 = 9,309,442.20/x
  3. Step 3: Cross multiply
    19,412,021.40x = 29,118,032.10 × 9,309,442.20
  4. Step 4: Simplify right side
    19,412,021.40x = 271,072,636,812,694.62
  5. Step 5: Solve for x
    x = 271,072,636,812,694.62/19,412,021.40
  6. Step 6: Final answer
    x = 13,964,163.30

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1.5x scale

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.