Home / 391,952,885,407.34-540,823,178,401.90-218,333,704,212.95

Finding the Fourth Proportional to 391,952,885,407.34, 540,823,178,401.90 and 218,333,704,212.95

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Solution

The fourth proportional to 391,952,885,407.34, 540,823,178,401.90 and 218,333,704,212.95 is: 301,260,514,365.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,952,885,407.34 : 540,823,178,401.90 = 218,333,704,212.95 : x
  2. Step 2: Convert to fraction form
    391,952,885,407.34/540,823,178,401.90 = 218,333,704,212.95/x
  3. Step 3: Cross multiply
    391,952,885,407.34x = 540,823,178,401.90 × 218,333,704,212.95
  4. Step 4: Simplify right side
    391,952,885,407.34x = 118,079,927,864,707,940,089,856
  5. Step 5: Solve for x
    x = 118,079,927,864,707,940,089,856/391,952,885,407.34
  6. Step 6: Final answer
    x = 301,260,514,365.12

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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.