Home / 77,662,072.80-116,493,109.20-72,875,167.20

Finding the Fourth Proportional to 77,662,072.80, 116,493,109.20 and 72,875,167.20

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Solution

The fourth proportional to 77,662,072.80, 116,493,109.20 and 72,875,167.20 is: 109,312,750.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,662,072.80 : 116,493,109.20 = 72,875,167.20 : x
  2. Step 2: Convert to fraction form
    77,662,072.80/116,493,109.20 = 72,875,167.20/x
  3. Step 3: Cross multiply
    77,662,072.80x = 116,493,109.20 × 72,875,167.20
  4. Step 4: Simplify right side
    77,662,072.80x = 8,489,454,810,597,859
  5. Step 5: Solve for x
    x = 8,489,454,810,597,859/77,662,072.80
  6. Step 6: Final answer
    x = 109,312,750.80

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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.