Home / 280,166,941.80-420,250,412.70-118,923,805.80

Finding the Fourth Proportional to 280,166,941.80, 420,250,412.70 and 118,923,805.80

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Solution

The fourth proportional to 280,166,941.80, 420,250,412.70 and 118,923,805.80 is: 178,385,708.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,166,941.80 : 420,250,412.70 = 118,923,805.80 : x
  2. Step 2: Convert to fraction form
    280,166,941.80/420,250,412.70 = 118,923,805.80/x
  3. Step 3: Cross multiply
    280,166,941.80x = 420,250,412.70 × 118,923,805.80
  4. Step 4: Simplify right side
    280,166,941.80x = 49,977,778,467,304,648
  5. Step 5: Solve for x
    x = 49,977,778,467,304,648/280,166,941.80
  6. Step 6: Final answer
    x = 178,385,708.70

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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.