Home / 211,083,836.59-316,665,530.34-79,965,384.47

Finding the Fourth Proportional to 211,083,836.59, 316,665,530.34 and 79,965,384.47

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Solution

The fourth proportional to 211,083,836.59, 316,665,530.34 and 79,965,384.47 is: 119,963,144.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,083,836.59 : 316,665,530.34 = 79,965,384.47 : x
  2. Step 2: Convert to fraction form
    211,083,836.59/316,665,530.34 = 79,965,384.47/x
  3. Step 3: Cross multiply
    211,083,836.59x = 316,665,530.34 × 79,965,384.47
  4. Step 4: Simplify right side
    211,083,836.59x = 25,322,280,881,790,652
  5. Step 5: Solve for x
    x = 25,322,280,881,790,652/211,083,836.59
  6. Step 6: Final answer
    x = 119,963,144.93

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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.