Home / 28,643,985.73-42,965,557.90-7,078,586.84

Finding the Fourth Proportional to 28,643,985.73, 42,965,557.90 and 7,078,586.84

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Solution

The fourth proportional to 28,643,985.73, 42,965,557.90 and 7,078,586.84 is: 10,617,776.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,643,985.73 : 42,965,557.90 = 7,078,586.84 : x
  2. Step 2: Convert to fraction form
    28,643,985.73/42,965,557.90 = 7,078,586.84/x
  3. Step 3: Cross multiply
    28,643,985.73x = 42,965,557.90 × 7,078,586.84
  4. Step 4: Simplify right side
    28,643,985.73x = 304,135,432,724,198
  5. Step 5: Solve for x
    x = 304,135,432,724,198/28,643,985.73
  6. Step 6: Final answer
    x = 10,617,776.30

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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.