Home / 76,788,625.80-115,182,938.70-74,662,861.80

Finding the Fourth Proportional to 76,788,625.80, 115,182,938.70 and 74,662,861.80

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Solution

The fourth proportional to 76,788,625.80, 115,182,938.70 and 74,662,861.80 is: 111,994,292.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,788,625.80 : 115,182,938.70 = 74,662,861.80 : x
  2. Step 2: Convert to fraction form
    76,788,625.80/115,182,938.70 = 74,662,861.80/x
  3. Step 3: Cross multiply
    76,788,625.80x = 115,182,938.70 × 74,662,861.80
  4. Step 4: Simplify right side
    76,788,625.80x = 8,599,887,833,875,972
  5. Step 5: Solve for x
    x = 8,599,887,833,875,972/76,788,625.80
  6. Step 6: Final answer
    x = 111,994,292.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.