Home / 128,303,999.40-192,455,999.10-37,436,773.80

Finding the Fourth Proportional to 128,303,999.40, 192,455,999.10 and 37,436,773.80

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Solution

The fourth proportional to 128,303,999.40, 192,455,999.10 and 37,436,773.80 is: 56,155,160.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,303,999.40 : 192,455,999.10 = 37,436,773.80 : x
  2. Step 2: Convert to fraction form
    128,303,999.40/192,455,999.10 = 37,436,773.80/x
  3. Step 3: Cross multiply
    128,303,999.40x = 192,455,999.10 × 37,436,773.80
  4. Step 4: Simplify right side
    128,303,999.40x = 7,204,931,704,759,703
  5. Step 5: Solve for x
    x = 7,204,931,704,759,703/128,303,999.40
  6. Step 6: Final answer
    x = 56,155,160.70

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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.