Home / 81,570,550,596.24-111,752,052,945.40-78,513,308,566.68

Finding the Fourth Proportional to 81,570,550,596.24, 111,752,052,945.40 and 78,513,308,566.68

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Solution

The fourth proportional to 81,570,550,596.24, 111,752,052,945.40 and 78,513,308,566.68 is: 107,563,616,424.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,570,550,596.24 : 111,752,052,945.40 = 78,513,308,566.68 : x
  2. Step 2: Convert to fraction form
    81,570,550,596.24/111,752,052,945.40 = 78,513,308,566.68/x
  3. Step 3: Cross multiply
    81,570,550,596.24x = 111,752,052,945.40 × 78,513,308,566.68
  4. Step 4: Simplify right side
    81,570,550,596.24x = 8,774,023,415,862,149,513,216
  5. Step 5: Solve for x
    x = 8,774,023,415,862,149,513,216/81,570,550,596.24
  6. Step 6: Final answer
    x = 107,563,616,424.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.