Home / 391,952,885,399.10-540,823,178,390.52-218,333,704,204.72

Finding the Fourth Proportional to 391,952,885,399.10, 540,823,178,390.52 and 218,333,704,204.72

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Solution

The fourth proportional to 391,952,885,399.10, 540,823,178,390.52 and 218,333,704,204.72 is: 301,260,514,353.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,952,885,399.10 : 540,823,178,390.52 = 218,333,704,204.72 : x
  2. Step 2: Convert to fraction form
    391,952,885,399.10/540,823,178,390.52 = 218,333,704,204.72/x
  3. Step 3: Cross multiply
    391,952,885,399.10x = 540,823,178,390.52 × 218,333,704,204.72
  4. Step 4: Simplify right side
    391,952,885,399.10x = 118,079,927,857,772,322,881,536
  5. Step 5: Solve for x
    x = 118,079,927,857,772,322,881,536/391,952,885,399.10
  6. Step 6: Final answer
    x = 301,260,514,353.76

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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.