Home / 78,544,410,600.61-117,816,617,459.69-18,853,072,874.31

Finding the Fourth Proportional to 78,544,410,600.61, 117,816,617,459.69 and 18,853,072,874.31

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Solution

The fourth proportional to 78,544,410,600.61, 117,816,617,459.69 and 18,853,072,874.31 is: 28,279,609,685.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,544,410,600.61 : 117,816,617,459.69 = 18,853,072,874.31 : x
  2. Step 2: Convert to fraction form
    78,544,410,600.61/117,816,617,459.69 = 18,853,072,874.31/x
  3. Step 3: Cross multiply
    78,544,410,600.61x = 117,816,617,459.69 × 18,853,072,874.31
  4. Step 4: Simplify right side
    78,544,410,600.61x = 2,221,205,274,772,239,810,560
  5. Step 5: Solve for x
    x = 2,221,205,274,772,239,810,560/78,544,410,600.61
  6. Step 6: Final answer
    x = 28,279,609,685.62

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1.5x scale

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.