Home / 315,923,114.70-473,884,672.05-212,610,984.30

Finding the Fourth Proportional to 315,923,114.70, 473,884,672.05 and 212,610,984.30

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Solution

The fourth proportional to 315,923,114.70, 473,884,672.05 and 212,610,984.30 is: 318,916,476.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,923,114.70 : 473,884,672.05 = 212,610,984.30 : x
  2. Step 2: Convert to fraction form
    315,923,114.70/473,884,672.05 = 212,610,984.30/x
  3. Step 3: Cross multiply
    315,923,114.70x = 473,884,672.05 × 212,610,984.30
  4. Step 4: Simplify right side
    315,923,114.70x = 100,753,086,569,233,200
  5. Step 5: Solve for x
    x = 100,753,086,569,233,200/315,923,114.70
  6. Step 6: Final answer
    x = 318,916,476.45

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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.