Home / 367,921,061.73-507,643,772.94-209,138,722.88

Finding the Fourth Proportional to 367,921,061.73, 507,643,772.94 and 209,138,722.88

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Solution

The fourth proportional to 367,921,061.73, 507,643,772.94 and 209,138,722.88 is: 288,561,817.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,921,061.73 : 507,643,772.94 = 209,138,722.88 : x
  2. Step 2: Convert to fraction form
    367,921,061.73/507,643,772.94 = 209,138,722.88/x
  3. Step 3: Cross multiply
    367,921,061.73x = 507,643,772.94 × 209,138,722.88
  4. Step 4: Simplify right side
    367,921,061.73x = 106,167,970,348,118,080
  5. Step 5: Solve for x
    x = 106,167,970,348,118,080/367,921,061.73
  6. Step 6: Final answer
    x = 288,561,817.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.