Home / 76,728,589.70-105,884,214.80-41,920,530.98

Finding the Fourth Proportional to 76,728,589.70, 105,884,214.80 and 41,920,530.98

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Solution

The fourth proportional to 76,728,589.70, 105,884,214.80 and 41,920,530.98 is: 57,849,655.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,728,589.70 : 105,884,214.80 = 41,920,530.98 : x
  2. Step 2: Convert to fraction form
    76,728,589.70/105,884,214.80 = 41,920,530.98/x
  3. Step 3: Cross multiply
    76,728,589.70x = 105,884,214.80 × 41,920,530.98
  4. Step 4: Simplify right side
    76,728,589.70x = 4,438,722,506,816,374
  5. Step 5: Solve for x
    x = 4,438,722,506,816,374/76,728,589.70
  6. Step 6: Final answer
    x = 57,849,655.83

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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.