Home / 20,228,447.80-27,909,875.72-11,526,434.92

Finding the Fourth Proportional to 20,228,447.80, 27,909,875.72 and 11,526,434.92

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Solution

The fourth proportional to 20,228,447.80, 27,909,875.72 and 11,526,434.92 is: 15,903,413.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,228,447.80 : 27,909,875.72 = 11,526,434.92 : x
  2. Step 2: Convert to fraction form
    20,228,447.80/27,909,875.72 = 11,526,434.92/x
  3. Step 3: Cross multiply
    20,228,447.80x = 27,909,875.72 × 11,526,434.92
  4. Step 4: Simplify right side
    20,228,447.80x = 321,701,366,111,868.12
  5. Step 5: Solve for x
    x = 321,701,366,111,868.12/20,228,447.80
  6. Step 6: Final answer
    x = 15,903,413.32

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1.5x scale

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.