Home / 20,768,476.68-28,662,131.61-11,827,964.91

Finding the Fourth Proportional to 20,768,476.68, 28,662,131.61 and 11,827,964.91

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Solution

The fourth proportional to 20,768,476.68, 28,662,131.61 and 11,827,964.91 is: 16,323,522.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,768,476.68 : 28,662,131.61 = 11,827,964.91 : x
  2. Step 2: Convert to fraction form
    20,768,476.68/28,662,131.61 = 11,827,964.91/x
  3. Step 3: Cross multiply
    20,768,476.68x = 28,662,131.61 × 11,827,964.91
  4. Step 4: Simplify right side
    20,768,476.68x = 339,014,686,928,881.81
  5. Step 5: Solve for x
    x = 339,014,686,928,881.81/20,768,476.68
  6. Step 6: Final answer
    x = 16,323,522.05

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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.