Home / 655,318,849.04-904,339,976.90-353,904,135.23

Finding the Fourth Proportional to 655,318,849.04, 904,339,976.90 and 353,904,135.23

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Solution

The fourth proportional to 655,318,849.04, 904,339,976.90 and 353,904,135.23 is: 488,387,687.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,318,849.04 : 904,339,976.90 = 353,904,135.23 : x
  2. Step 2: Convert to fraction form
    655,318,849.04/904,339,976.90 = 353,904,135.23/x
  3. Step 3: Cross multiply
    655,318,849.04x = 904,339,976.90 × 353,904,135.23
  4. Step 4: Simplify right side
    655,318,849.04x = 320,049,657,472,421,440
  5. Step 5: Solve for x
    x = 320,049,657,472,421,440/655,318,849.04
  6. Step 6: Final answer
    x = 488,387,687.83

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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.