Home / 218,685,940.80-328,032,410.40-57,127,876.80

Finding the Fourth Proportional to 218,685,940.80, 328,032,410.40 and 57,127,876.80

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Solution

The fourth proportional to 218,685,940.80, 328,032,410.40 and 57,127,876.80 is: 85,692,729.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,685,940.80 : 328,032,410.40 = 57,127,876.80 : x
  2. Step 2: Convert to fraction form
    218,685,940.80/328,032,410.40 = 57,127,876.80/x
  3. Step 3: Cross multiply
    218,685,940.80x = 328,032,410.40 × 57,127,876.80
  4. Step 4: Simplify right side
    218,685,940.80x = 18,739,795,127,738,236
  5. Step 5: Solve for x
    x = 18,739,795,127,738,236/218,685,940.80
  6. Step 6: Final answer
    x = 85,692,729.30

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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.