Home / 12,781,273.87-17,638,298.20-6,980,226.30

Finding the Fourth Proportional to 12,781,273.87, 17,638,298.20 and 6,980,226.30

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Solution

The fourth proportional to 12,781,273.87, 17,638,298.20 and 6,980,226.30 is: 9,632,788.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,781,273.87 : 17,638,298.20 = 6,980,226.30 : x
  2. Step 2: Convert to fraction form
    12,781,273.87/17,638,298.20 = 6,980,226.30/x
  3. Step 3: Cross multiply
    12,781,273.87x = 17,638,298.20 × 6,980,226.30
  4. Step 4: Simplify right side
    12,781,273.87x = 123,119,312,991,607.95
  5. Step 5: Solve for x
    x = 123,119,312,991,607.95/12,781,273.87
  6. Step 6: Final answer
    x = 9,632,788.89

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1.5x scale

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.