Home / 85,414,871.52-128,326,703.82-54,769,492.08

Finding the Fourth Proportional to 85,414,871.52, 128,326,703.82 and 54,769,492.08

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Solution

The fourth proportional to 85,414,871.52, 128,326,703.82 and 54,769,492.08 is: 82,285,300.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,414,871.52 : 128,326,703.82 = 54,769,492.08 : x
  2. Step 2: Convert to fraction form
    85,414,871.52/128,326,703.82 = 54,769,492.08/x
  3. Step 3: Cross multiply
    85,414,871.52x = 128,326,703.82 × 54,769,492.08
  4. Step 4: Simplify right side
    85,414,871.52x = 7,028,388,388,521,995
  5. Step 5: Solve for x
    x = 7,028,388,388,521,995/85,414,871.52
  6. Step 6: Final answer
    x = 82,285,300.71

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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.