Home / 38,312,517,555.72-52,863,606,170.82-21,393,561,879.72

Finding the Fourth Proportional to 38,312,517,555.72, 52,863,606,170.82 and 21,393,561,879.72

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Solution

The fourth proportional to 38,312,517,555.72, 52,863,606,170.82 and 21,393,561,879.72 is: 29,518,833,581.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,312,517,555.72 : 52,863,606,170.82 = 21,393,561,879.72 : x
  2. Step 2: Convert to fraction form
    38,312,517,555.72/52,863,606,170.82 = 21,393,561,879.72/x
  3. Step 3: Cross multiply
    38,312,517,555.72x = 52,863,606,170.82 × 21,393,561,879.72
  4. Step 4: Simplify right side
    38,312,517,555.72x = 1,130,940,829,800,585,756,672
  5. Step 5: Solve for x
    x = 1,130,940,829,800,585,756,672/38,312,517,555.72
  6. Step 6: Final answer
    x = 29,518,833,581.11

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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.