Home / 259,248,980.80-389,022,770.40-97,806,779.20

Finding the Fourth Proportional to 259,248,980.80, 389,022,770.40 and 97,806,779.20

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Solution

The fourth proportional to 259,248,980.80, 389,022,770.40 and 97,806,779.20 is: 146,766,494.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,248,980.80 : 389,022,770.40 = 97,806,779.20 : x
  2. Step 2: Convert to fraction form
    259,248,980.80/389,022,770.40 = 97,806,779.20/x
  3. Step 3: Cross multiply
    259,248,980.80x = 389,022,770.40 × 97,806,779.20
  4. Step 4: Simplify right side
    259,248,980.80x = 38,049,064,208,285,096
  5. Step 5: Solve for x
    x = 38,049,064,208,285,096/259,248,980.80
  6. Step 6: Final answer
    x = 146,766,494.86

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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.