Home / 827,712,139.64-1,142,270,327.60-451,389,260.12

Finding the Fourth Proportional to 827,712,139.64, 1,142,270,327.60 and 451,389,260.12

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Solution

The fourth proportional to 827,712,139.64, 1,142,270,327.60 and 451,389,260.12 is: 622,932,216.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,712,139.64 : 1,142,270,327.60 = 451,389,260.12 : x
  2. Step 2: Convert to fraction form
    827,712,139.64/1,142,270,327.60 = 451,389,260.12/x
  3. Step 3: Cross multiply
    827,712,139.64x = 1,142,270,327.60 × 451,389,260.12
  4. Step 4: Simplify right side
    827,712,139.64x = 515,608,558,032,393,984
  5. Step 5: Solve for x
    x = 515,608,558,032,393,984/827,712,139.64
  6. Step 6: Final answer
    x = 622,932,216.82

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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.