Home / 103,590,434.60-155,385,651.90-99,167,445.80

Finding the Fourth Proportional to 103,590,434.60, 155,385,651.90 and 99,167,445.80

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Solution

The fourth proportional to 103,590,434.60, 155,385,651.90 and 99,167,445.80 is: 148,751,168.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,590,434.60 : 155,385,651.90 = 99,167,445.80 : x
  2. Step 2: Convert to fraction form
    103,590,434.60/155,385,651.90 = 99,167,445.80/x
  3. Step 3: Cross multiply
    103,590,434.60x = 155,385,651.90 × 99,167,445.80
  4. Step 4: Simplify right side
    103,590,434.60x = 15,409,198,212,890,918
  5. Step 5: Solve for x
    x = 15,409,198,212,890,918/103,590,434.60
  6. Step 6: Final answer
    x = 148,751,168.70

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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.