Home / 21,020,685.60-29,008,505.80-11,727,702.70

Finding the Fourth Proportional to 21,020,685.60, 29,008,505.80 and 11,727,702.70

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Solution

The fourth proportional to 21,020,685.60, 29,008,505.80 and 11,727,702.70 is: 16,184,207.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,020,685.60 : 29,008,505.80 = 11,727,702.70 : x
  2. Step 2: Convert to fraction form
    21,020,685.60/29,008,505.80 = 11,727,702.70/x
  3. Step 3: Cross multiply
    21,020,685.60x = 29,008,505.80 × 11,727,702.70
  4. Step 4: Simplify right side
    21,020,685.60x = 340,203,131,793,625.62
  5. Step 5: Solve for x
    x = 340,203,131,793,625.62/21,020,685.60
  6. Step 6: Final answer
    x = 16,184,207.23

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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.