Home / 20,883,957.13-28,819,426.35-11,590,981.84

Finding the Fourth Proportional to 20,883,957.13, 28,819,426.35 and 11,590,981.84

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Solution

The fourth proportional to 20,883,957.13, 28,819,426.35 and 11,590,981.84 is: 15,995,313.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,883,957.13 : 28,819,426.35 = 11,590,981.84 : x
  2. Step 2: Convert to fraction form
    20,883,957.13/28,819,426.35 = 11,590,981.84/x
  3. Step 3: Cross multiply
    20,883,957.13x = 28,819,426.35 × 11,590,981.84
  4. Step 4: Simplify right side
    20,883,957.13x = 334,045,447,462,067.50
  5. Step 5: Solve for x
    x = 334,045,447,462,067.50/20,883,957.13
  6. Step 6: Final answer
    x = 15,995,313.79

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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.