Home / 168,497,315.40-252,745,973.10-82,291,024.20

Finding the Fourth Proportional to 168,497,315.40, 252,745,973.10 and 82,291,024.20

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Solution

The fourth proportional to 168,497,315.40, 252,745,973.10 and 82,291,024.20 is: 123,436,536.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,497,315.40 : 252,745,973.10 = 82,291,024.20 : x
  2. Step 2: Convert to fraction form
    168,497,315.40/252,745,973.10 = 82,291,024.20/x
  3. Step 3: Cross multiply
    168,497,315.40x = 252,745,973.10 × 82,291,024.20
  4. Step 4: Simplify right side
    168,497,315.40x = 20,798,724,988,824,648
  5. Step 5: Solve for x
    x = 20,798,724,988,824,648/168,497,315.40
  6. Step 6: Final answer
    x = 123,436,536.30

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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.