Home / 143,080,541.72-197,493,965.88-83,557,893.76

Finding the Fourth Proportional to 143,080,541.72, 197,493,965.88 and 83,557,893.76

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Solution

The fourth proportional to 143,080,541.72, 197,493,965.88 and 83,557,893.76 is: 115,334,898.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,080,541.72 : 197,493,965.88 = 83,557,893.76 : x
  2. Step 2: Convert to fraction form
    143,080,541.72/197,493,965.88 = 83,557,893.76/x
  3. Step 3: Cross multiply
    143,080,541.72x = 197,493,965.88 × 83,557,893.76
  4. Step 4: Simplify right side
    143,080,541.72x = 16,502,179,819,242,106
  5. Step 5: Solve for x
    x = 16,502,179,819,242,106/143,080,541.72
  6. Step 6: Final answer
    x = 115,334,898.94

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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.