Home / 57,137,161,863.12-85,739,163,222.41-21,306,672,522.98

Finding the Fourth Proportional to 57,137,161,863.12, 85,739,163,222.41 and 21,306,672,522.98

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Solution

The fourth proportional to 57,137,161,863.12, 85,739,163,222.41 and 21,306,672,522.98 is: 31,972,471,393.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,137,161,863.12 : 85,739,163,222.41 = 21,306,672,522.98 : x
  2. Step 2: Convert to fraction form
    57,137,161,863.12/85,739,163,222.41 = 21,306,672,522.98/x
  3. Step 3: Cross multiply
    57,137,161,863.12x = 85,739,163,222.41 × 21,306,672,522.98
  4. Step 4: Simplify right side
    57,137,161,863.12x = 1,826,816,273,173,685,207,040
  5. Step 5: Solve for x
    x = 1,826,816,273,173,685,207,040/57,137,161,863.12
  6. Step 6: Final answer
    x = 31,972,471,393.49

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Double scale
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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.