Home / 20,758,904.56-31,138,488.06-13,615,812.64

Finding the Fourth Proportional to 20,758,904.56, 31,138,488.06 and 13,615,812.64

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Solution

The fourth proportional to 20,758,904.56, 31,138,488.06 and 13,615,812.64 is: 20,423,805.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,758,904.56 : 31,138,488.06 = 13,615,812.64 : x
  2. Step 2: Convert to fraction form
    20,758,904.56/31,138,488.06 = 13,615,812.64/x
  3. Step 3: Cross multiply
    20,758,904.56x = 31,138,488.06 × 13,615,812.64
  4. Step 4: Simplify right side
    20,758,904.56x = 423,975,819,317,837.06
  5. Step 5: Solve for x
    x = 423,975,819,317,837.06/20,758,904.56
  6. Step 6: Final answer
    x = 20,423,805.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.