Home / 159,037,090.80-238,555,636.20-128,804,002.80

Finding the Fourth Proportional to 159,037,090.80, 238,555,636.20 and 128,804,002.80

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Solution

The fourth proportional to 159,037,090.80, 238,555,636.20 and 128,804,002.80 is: 193,206,004.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,037,090.80 : 238,555,636.20 = 128,804,002.80 : x
  2. Step 2: Convert to fraction form
    159,037,090.80/238,555,636.20 = 128,804,002.80/x
  3. Step 3: Cross multiply
    159,037,090.80x = 238,555,636.20 × 128,804,002.80
  4. Step 4: Simplify right side
    159,037,090.80x = 30,726,920,833,060,580
  5. Step 5: Solve for x
    x = 30,726,920,833,060,580/159,037,090.80
  6. Step 6: Final answer
    x = 193,206,004.20

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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.