Home / 12,578,461.60-18,867,692.40-8,547,383.20

Finding the Fourth Proportional to 12,578,461.60, 18,867,692.40 and 8,547,383.20

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Solution

The fourth proportional to 12,578,461.60, 18,867,692.40 and 8,547,383.20 is: 12,821,074.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,578,461.60 : 18,867,692.40 = 8,547,383.20 : x
  2. Step 2: Convert to fraction form
    12,578,461.60/18,867,692.40 = 8,547,383.20/x
  3. Step 3: Cross multiply
    12,578,461.60x = 18,867,692.40 × 8,547,383.20
  4. Step 4: Simplify right side
    12,578,461.60x = 161,269,397,042,527.66
  5. Step 5: Solve for x
    x = 161,269,397,042,527.66/12,578,461.60
  6. Step 6: Final answer
    x = 12,821,074.80

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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.