Home / 393,365,305.20-590,495,855.40-231,898,220.40

Finding the Fourth Proportional to 393,365,305.20, 590,495,855.40 and 231,898,220.40

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Solution

The fourth proportional to 393,365,305.20, 590,495,855.40 and 231,898,220.40 is: 348,111,376.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,365,305.20 : 590,495,855.40 = 231,898,220.40 : x
  2. Step 2: Convert to fraction form
    393,365,305.20/590,495,855.40 = 231,898,220.40/x
  3. Step 3: Cross multiply
    393,365,305.20x = 590,495,855.40 × 231,898,220.40
  4. Step 4: Simplify right side
    393,365,305.20x = 136,934,938,020,835,728
  5. Step 5: Solve for x
    x = 136,934,938,020,835,728/393,365,305.20
  6. Step 6: Final answer
    x = 348,111,376.91

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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.