Home / 20,187,779.80-30,261,986.70-11,543,006.20

Finding the Fourth Proportional to 20,187,779.80, 30,261,986.70 and 11,543,006.20

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Solution

The fourth proportional to 20,187,779.80, 30,261,986.70 and 11,543,006.20 is: 17,303,254.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,187,779.80 : 30,261,986.70 = 11,543,006.20 : x
  2. Step 2: Convert to fraction form
    20,187,779.80/30,261,986.70 = 11,543,006.20/x
  3. Step 3: Cross multiply
    20,187,779.80x = 30,261,986.70 × 11,543,006.20
  4. Step 4: Simplify right side
    20,187,779.80x = 349,314,300,102,417.50
  5. Step 5: Solve for x
    x = 349,314,300,102,417.50/20,187,779.80
  6. Step 6: Final answer
    x = 17,303,254.92

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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.