Home / 86,873,309.64-119,840,823.54-55,478,357.64

Finding the Fourth Proportional to 86,873,309.64, 119,840,823.54 and 55,478,357.64

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Solution

The fourth proportional to 86,873,309.64, 119,840,823.54 and 55,478,357.64 is: 76,531,815.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,873,309.64 : 119,840,823.54 = 55,478,357.64 : x
  2. Step 2: Convert to fraction form
    86,873,309.64/119,840,823.54 = 55,478,357.64/x
  3. Step 3: Cross multiply
    86,873,309.64x = 119,840,823.54 × 55,478,357.64
  4. Step 4: Simplify right side
    86,873,309.64x = 6,648,572,068,224,251
  5. Step 5: Solve for x
    x = 6,648,572,068,224,251/86,873,309.64
  6. Step 6: Final answer
    x = 76,531,815.07

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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.