Home / 389,022,717.93-536,849,745.74-210,406,805.61

Finding the Fourth Proportional to 389,022,717.93, 536,849,745.74 and 210,406,805.61

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Solution

The fourth proportional to 389,022,717.93, 536,849,745.74 and 210,406,805.61 is: 290,360,523.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,022,717.93 : 536,849,745.74 = 210,406,805.61 : x
  2. Step 2: Convert to fraction form
    389,022,717.93/536,849,745.74 = 210,406,805.61/x
  3. Step 3: Cross multiply
    389,022,717.93x = 536,849,745.74 × 210,406,805.61
  4. Step 4: Simplify right side
    389,022,717.93x = 112,956,840,093,694,112
  5. Step 5: Solve for x
    x = 112,956,840,093,694,112/389,022,717.93
  6. Step 6: Final answer
    x = 290,360,523.66

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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.