Home / 211,723,363.80-317,159,892.90-120,740,664.60

Finding the Fourth Proportional to 211,723,363.80, 317,159,892.90 and 120,740,664.60

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Solution

The fourth proportional to 211,723,363.80, 317,159,892.90 and 120,740,664.60 is: 180,868,542.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,723,363.80 : 317,159,892.90 = 120,740,664.60 : x
  2. Step 2: Convert to fraction form
    211,723,363.80/317,159,892.90 = 120,740,664.60/x
  3. Step 3: Cross multiply
    211,723,363.80x = 317,159,892.90 × 120,740,664.60
  4. Step 4: Simplify right side
    211,723,363.80x = 38,294,096,253,210,816
  5. Step 5: Solve for x
    x = 38,294,096,253,210,816/211,723,363.80
  6. Step 6: Final answer
    x = 180,868,542.64

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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.