Home / 392,528,328,806.75-541,689,094,796.37-212,087,236,055

Finding the Fourth Proportional to 392,528,328,806.75, 541,689,094,796.37 and 212,087,236,055

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Solution

The fourth proportional to 392,528,328,806.75, 541,689,094,796.37 and 212,087,236,055 is: 292,680,386,319.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,528,328,806.75 : 541,689,094,796.37 = 212,087,236,055 : x
  2. Step 2: Convert to fraction form
    392,528,328,806.75/541,689,094,796.37 = 212,087,236,055/x
  3. Step 3: Cross multiply
    392,528,328,806.75x = 541,689,094,796.37 × 212,087,236,055
  4. Step 4: Simplify right side
    392,528,328,806.75x = 114,885,342,916,496,995,647,488
  5. Step 5: Solve for x
    x = 114,885,342,916,496,995,647,488/392,528,328,806.75
  6. Step 6: Final answer
    x = 292,680,386,319.47

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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.