Home / 28,643,986.73-42,965,559.40-7,078,587.84

Finding the Fourth Proportional to 28,643,986.73, 42,965,559.40 and 7,078,587.84

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Solution

The fourth proportional to 28,643,986.73, 42,965,559.40 and 7,078,587.84 is: 10,617,777.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,643,986.73 : 42,965,559.40 = 7,078,587.84 : x
  2. Step 2: Convert to fraction form
    28,643,986.73/42,965,559.40 = 7,078,587.84/x
  3. Step 3: Cross multiply
    28,643,986.73x = 42,965,559.40 × 7,078,587.84
  4. Step 4: Simplify right side
    28,643,986.73x = 304,135,486,307,637.69
  5. Step 5: Solve for x
    x = 304,135,486,307,637.69/28,643,986.73
  6. Step 6: Final answer
    x = 10,617,777.80

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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.