Home / 7,978,176,001.20-11,967,264,001.80-2,162,085,697.20

Finding the Fourth Proportional to 7,978,176,001.20, 11,967,264,001.80 and 2,162,085,697.20

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Solution

The fourth proportional to 7,978,176,001.20, 11,967,264,001.80 and 2,162,085,697.20 is: 3,243,128,545.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,978,176,001.20 : 11,967,264,001.80 = 2,162,085,697.20 : x
  2. Step 2: Convert to fraction form
    7,978,176,001.20/11,967,264,001.80 = 2,162,085,697.20/x
  3. Step 3: Cross multiply
    7,978,176,001.20x = 11,967,264,001.80 × 2,162,085,697.20
  4. Step 4: Simplify right side
    7,978,176,001.20x = 25,874,250,332,908,212,224
  5. Step 5: Solve for x
    x = 25,874,250,332,908,212,224/7,978,176,001.20
  6. Step 6: Final answer
    x = 3,243,128,545.80

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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.