Home / 646,836,245.12-892,634,018.25-368,403,676.40

Finding the Fourth Proportional to 646,836,245.12, 892,634,018.25 and 368,403,676.40

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Solution

The fourth proportional to 646,836,245.12, 892,634,018.25 and 368,403,676.40 is: 508,397,073.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,836,245.12 : 892,634,018.25 = 368,403,676.40 : x
  2. Step 2: Convert to fraction form
    646,836,245.12/892,634,018.25 = 368,403,676.40/x
  3. Step 3: Cross multiply
    646,836,245.12x = 892,634,018.25 × 368,403,676.40
  4. Step 4: Simplify right side
    646,836,245.12x = 328,849,654,003,004,672
  5. Step 5: Solve for x
    x = 328,849,654,003,004,672/646,836,245.12
  6. Step 6: Final answer
    x = 508,397,073.42

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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.