Home / 120,379,790.67-180,263,150.36-79,314,732.08

Finding the Fourth Proportional to 120,379,790.67, 180,263,150.36 and 79,314,732.08

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Solution

The fourth proportional to 120,379,790.67, 180,263,150.36 and 79,314,732.08 is: 118,770,130.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,379,790.67 : 180,263,150.36 = 79,314,732.08 : x
  2. Step 2: Convert to fraction form
    120,379,790.67/180,263,150.36 = 79,314,732.08/x
  3. Step 3: Cross multiply
    120,379,790.67x = 180,263,150.36 × 79,314,732.08
  4. Step 4: Simplify right side
    120,379,790.67x = 14,297,523,473,402,266
  5. Step 5: Solve for x
    x = 14,297,523,473,402,266/120,379,790.67
  6. Step 6: Final answer
    x = 118,770,130.72

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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.