Home / 20,804,624.36-28,712,542.67-11,984,380.46

Finding the Fourth Proportional to 20,804,624.36, 28,712,542.67 and 11,984,380.46

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Solution

The fourth proportional to 20,804,624.36, 28,712,542.67 and 11,984,380.46 is: 16,539,689.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,804,624.36 : 28,712,542.67 = 11,984,380.46 : x
  2. Step 2: Convert to fraction form
    20,804,624.36/28,712,542.67 = 11,984,380.46/x
  3. Step 3: Cross multiply
    20,804,624.36x = 28,712,542.67 × 11,984,380.46
  4. Step 4: Simplify right side
    20,804,624.36x = 344,102,035,127,779.62
  5. Step 5: Solve for x
    x = 344,102,035,127,779.62/20,804,624.36
  6. Step 6: Final answer
    x = 16,539,689.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.