Home / 21,020,686.60-29,008,507.18-11,727,703.70

Finding the Fourth Proportional to 21,020,686.60, 29,008,507.18 and 11,727,703.70

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Solution

The fourth proportional to 21,020,686.60, 29,008,507.18 and 11,727,703.70 is: 16,184,208.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,020,686.60 : 29,008,507.18 = 11,727,703.70 : x
  2. Step 2: Convert to fraction form
    21,020,686.60/29,008,507.18 = 11,727,703.70/x
  3. Step 3: Cross multiply
    21,020,686.60x = 29,008,507.18 × 11,727,703.70
  4. Step 4: Simplify right side
    21,020,686.60x = 340,203,176,986,362.56
  5. Step 5: Solve for x
    x = 340,203,176,986,362.56/21,020,686.60
  6. Step 6: Final answer
    x = 16,184,208.61

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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.