Home / 646,836,721.18-892,634,679.29-368,404,152.46

Finding the Fourth Proportional to 646,836,721.18, 892,634,679.29 and 368,404,152.46

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Solution

The fourth proportional to 646,836,721.18, 892,634,679.29 and 368,404,152.46 is: 508,397,732.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,836,721.18 : 892,634,679.29 = 368,404,152.46 : x
  2. Step 2: Convert to fraction form
    646,836,721.18/892,634,679.29 = 368,404,152.46/x
  3. Step 3: Cross multiply
    646,836,721.18x = 892,634,679.29 × 368,404,152.46
  4. Step 4: Simplify right side
    646,836,721.18x = 328,850,322,480,236,352
  5. Step 5: Solve for x
    x = 328,850,322,480,236,352/646,836,721.18
  6. Step 6: Final answer
    x = 508,397,732.71

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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.