Home / 8,105,883,112.51-11,180,352,098.51-7,438,981,738.21

Finding the Fourth Proportional to 8,105,883,112.51, 11,180,352,098.51 and 7,438,981,738.21

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Solution

The fourth proportional to 8,105,883,112.51, 11,180,352,098.51 and 7,438,981,738.21 is: 10,260,502,641.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,105,883,112.51 : 11,180,352,098.51 = 7,438,981,738.21 : x
  2. Step 2: Convert to fraction form
    8,105,883,112.51/11,180,352,098.51 = 7,438,981,738.21/x
  3. Step 3: Cross multiply
    8,105,883,112.51x = 11,180,352,098.51 × 7,438,981,738.21
  4. Step 4: Simplify right side
    8,105,883,112.51x = 83,170,435,087,573,745,664
  5. Step 5: Solve for x
    x = 83,170,435,087,573,745,664/8,105,883,112.51
  6. Step 6: Final answer
    x = 10,260,502,641.50

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Double scale
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1.5x scale

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.