Home / 21,923,981,920.71-30,255,117,442.07-11,899,478,834.55

Finding the Fourth Proportional to 21,923,981,920.71, 30,255,117,442.07 and 11,899,478,834.55

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Solution

The fourth proportional to 21,923,981,920.71, 30,255,117,442.07 and 11,899,478,834.55 is: 16,421,292,944.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,923,981,920.71 : 30,255,117,442.07 = 11,899,478,834.55 : x
  2. Step 2: Convert to fraction form
    21,923,981,920.71/30,255,117,442.07 = 11,899,478,834.55/x
  3. Step 3: Cross multiply
    21,923,981,920.71x = 30,255,117,442.07 × 11,899,478,834.55
  4. Step 4: Simplify right side
    21,923,981,920.71x = 360,020,129,638,676,955,136
  5. Step 5: Solve for x
    x = 360,020,129,638,676,955,136/21,923,981,920.71
  6. Step 6: Final answer
    x = 16,421,292,944.90

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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.