Home / 208,920,548.04-312,972,188.76-172,085,318.52

Finding the Fourth Proportional to 208,920,548.04, 312,972,188.76 and 172,085,318.52

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Solution

The fourth proportional to 208,920,548.04, 312,972,188.76 and 172,085,318.52 is: 257,791,391.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,920,548.04 : 312,972,188.76 = 172,085,318.52 : x
  2. Step 2: Convert to fraction form
    208,920,548.04/312,972,188.76 = 172,085,318.52/x
  3. Step 3: Cross multiply
    208,920,548.04x = 312,972,188.76 × 172,085,318.52
  4. Step 4: Simplify right side
    208,920,548.04x = 53,857,918,790,666,168
  5. Step 5: Solve for x
    x = 53,857,918,790,666,168/208,920,548.04
  6. Step 6: Final answer
    x = 257,791,391.49

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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.