Home / 920,440,984.92-1,270,200,145.52-502,753,144.92

Finding the Fourth Proportional to 920,440,984.92, 1,270,200,145.52 and 502,753,144.92

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Solution

The fourth proportional to 920,440,984.92, 1,270,200,145.52 and 502,753,144.92 is: 693,794,744.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,440,984.92 : 1,270,200,145.52 = 502,753,144.92 : x
  2. Step 2: Convert to fraction form
    920,440,984.92/1,270,200,145.52 = 502,753,144.92/x
  3. Step 3: Cross multiply
    920,440,984.92x = 1,270,200,145.52 × 502,753,144.92
  4. Step 4: Simplify right side
    920,440,984.92x = 638,597,117,838,021,632
  5. Step 5: Solve for x
    x = 638,597,117,838,021,632/920,440,984.92
  6. Step 6: Final answer
    x = 693,794,744.37

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Double scale
Find fourth proportional to 920,440,985.92, 1,270,200,146.90 and 502,753,145.92
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1.5x scale

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.