Home / 299,088,918.72-448,791,441.28-212,211,892.04

Finding the Fourth Proportional to 299,088,918.72, 448,791,441.28 and 212,211,892.04

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Solution

The fourth proportional to 299,088,918.72, 448,791,441.28 and 212,211,892.04 is: 318,429,988.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,088,918.72 : 448,791,441.28 = 212,211,892.04 : x
  2. Step 2: Convert to fraction form
    299,088,918.72/448,791,441.28 = 212,211,892.04/x
  3. Step 3: Cross multiply
    299,088,918.72x = 448,791,441.28 × 212,211,892.04
  4. Step 4: Simplify right side
    299,088,918.72x = 95,238,880,885,387,344
  5. Step 5: Solve for x
    x = 95,238,880,885,387,344/299,088,918.72
  6. Step 6: Final answer
    x = 318,429,988.29

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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.