Home / 817,708,608,086.40-1,226,562,912,129.60-678,394,538,582.40

Finding the Fourth Proportional to 817,708,608,086.40, 1,226,562,912,129.60 and 678,394,538,582.40

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Solution

The fourth proportional to 817,708,608,086.40, 1,226,562,912,129.60 and 678,394,538,582.40 is: 1,017,591,807,873.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,708,608,086.40 : 1,226,562,912,129.60 = 678,394,538,582.40 : x
  2. Step 2: Convert to fraction form
    817,708,608,086.40/1,226,562,912,129.60 = 678,394,538,582.40/x
  3. Step 3: Cross multiply
    817,708,608,086.40x = 1,226,562,912,129.60 × 678,394,538,582.40
  4. Step 4: Simplify right side
    817,708,608,086.40x = 832,093,580,816,444,945,334,272
  5. Step 5: Solve for x
    x = 832,093,580,816,444,945,334,272/817,708,608,086.40
  6. Step 6: Final answer
    x = 1,017,591,807,873.60

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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.