Home / 218,821,431.60-328,232,147.40-127,898,218.80

Finding the Fourth Proportional to 218,821,431.60, 328,232,147.40 and 127,898,218.80

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Solution

The fourth proportional to 218,821,431.60, 328,232,147.40 and 127,898,218.80 is: 191,847,328.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,821,431.60 : 328,232,147.40 = 127,898,218.80 : x
  2. Step 2: Convert to fraction form
    218,821,431.60/328,232,147.40 = 127,898,218.80/x
  3. Step 3: Cross multiply
    218,821,431.60x = 328,232,147.40 × 127,898,218.80
  4. Step 4: Simplify right side
    218,821,431.60x = 41,980,307,005,359,048
  5. Step 5: Solve for x
    x = 41,980,307,005,359,048/218,821,431.60
  6. Step 6: Final answer
    x = 191,847,328.20

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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.