Home / 83,789,287.51-115,645,225.64-55,481,731.86

Finding the Fourth Proportional to 83,789,287.51, 115,645,225.64 and 55,481,731.86

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Solution

The fourth proportional to 83,789,287.51, 115,645,225.64 and 55,481,731.86 is: 76,575,390.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,789,287.51 : 115,645,225.64 = 55,481,731.86 : x
  2. Step 2: Convert to fraction form
    83,789,287.51/115,645,225.64 = 55,481,731.86/x
  3. Step 3: Cross multiply
    83,789,287.51x = 115,645,225.64 × 55,481,731.86
  4. Step 4: Simplify right side
    83,789,287.51x = 6,416,197,399,281,156
  5. Step 5: Solve for x
    x = 6,416,197,399,281,156/83,789,287.51
  6. Step 6: Final answer
    x = 76,575,390.36

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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.