Home / 820,540,997.78-1,132,459,495.02-503,191,004.63

Finding the Fourth Proportional to 820,540,997.78, 1,132,459,495.02 and 503,191,004.63

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Solution

The fourth proportional to 820,540,997.78, 1,132,459,495.02 and 503,191,004.63 is: 694,472,832.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,540,997.78 : 1,132,459,495.02 = 503,191,004.63 : x
  2. Step 2: Convert to fraction form
    820,540,997.78/1,132,459,495.02 = 503,191,004.63/x
  3. Step 3: Cross multiply
    820,540,997.78x = 1,132,459,495.02 × 503,191,004.63
  4. Step 4: Simplify right side
    820,540,997.78x = 569,843,430,996,233,984
  5. Step 5: Solve for x
    x = 569,843,430,996,233,984/820,540,997.78
  6. Step 6: Final answer
    x = 694,472,832.61

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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.