Home / 105,191,998.80-157,787,998.20-79,682,830.80

Finding the Fourth Proportional to 105,191,998.80, 157,787,998.20 and 79,682,830.80

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Solution

The fourth proportional to 105,191,998.80, 157,787,998.20 and 79,682,830.80 is: 119,524,246.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,191,998.80 : 157,787,998.20 = 79,682,830.80 : x
  2. Step 2: Convert to fraction form
    105,191,998.80/157,787,998.20 = 79,682,830.80/x
  3. Step 3: Cross multiply
    105,191,998.80x = 157,787,998.20 × 79,682,830.80
  4. Step 4: Simplify right side
    105,191,998.80x = 12,572,994,362,841,304
  5. Step 5: Solve for x
    x = 12,572,994,362,841,304/105,191,998.80
  6. Step 6: Final answer
    x = 119,524,246.20

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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.