Home / 21,923,981,916.96-30,255,117,436.89-11,899,478,830.80

Finding the Fourth Proportional to 21,923,981,916.96, 30,255,117,436.89 and 11,899,478,830.80

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Solution

The fourth proportional to 21,923,981,916.96, 30,255,117,436.89 and 11,899,478,830.80 is: 16,421,292,939.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,923,981,916.96 : 30,255,117,436.89 = 11,899,478,830.80 : x
  2. Step 2: Convert to fraction form
    21,923,981,916.96/30,255,117,436.89 = 11,899,478,830.80/x
  3. Step 3: Cross multiply
    21,923,981,916.96x = 30,255,117,436.89 × 11,899,478,830.80
  4. Step 4: Simplify right side
    21,923,981,916.96x = 360,020,129,463,640,457,216
  5. Step 5: Solve for x
    x = 360,020,129,463,640,457,216/21,923,981,916.96
  6. Step 6: Final answer
    x = 16,421,292,939.73

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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.