Home / 386,096,809.20-579,145,213.80-318,072,361.20

Finding the Fourth Proportional to 386,096,809.20, 579,145,213.80 and 318,072,361.20

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Solution

The fourth proportional to 386,096,809.20, 579,145,213.80 and 318,072,361.20 is: 477,108,541.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,096,809.20 : 579,145,213.80 = 318,072,361.20 : x
  2. Step 2: Convert to fraction form
    386,096,809.20/579,145,213.80 = 318,072,361.20/x
  3. Step 3: Cross multiply
    386,096,809.20x = 579,145,213.80 × 318,072,361.20
  4. Step 4: Simplify right side
    386,096,809.20x = 184,210,085,631,044,800
  5. Step 5: Solve for x
    x = 184,210,085,631,044,800/386,096,809.20
  6. Step 6: Final answer
    x = 477,108,541.80

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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.