Home / 391,799,110.83-540,666,561.88-213,183,733.98

Finding the Fourth Proportional to 391,799,110.83, 540,666,561.88 and 213,183,733.98

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Solution

The fourth proportional to 391,799,110.83, 540,666,561.88 and 213,183,733.98 is: 294,184,732.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,799,110.83 : 540,666,561.88 = 213,183,733.98 : x
  2. Step 2: Convert to fraction form
    391,799,110.83/540,666,561.88 = 213,183,733.98/x
  3. Step 3: Cross multiply
    391,799,110.83x = 540,666,561.88 × 213,183,733.98
  4. Step 4: Simplify right side
    391,799,110.83x = 115,261,316,499,707,120
  5. Step 5: Solve for x
    x = 115,261,316,499,707,120/391,799,110.83
  6. Step 6: Final answer
    x = 294,184,732.21

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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.