Home / 12,401,779.19-17,115,412.94-7,440,406.57

Finding the Fourth Proportional to 12,401,779.19, 17,115,412.94 and 7,440,406.57

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Solution

The fourth proportional to 12,401,779.19, 17,115,412.94 and 7,440,406.57 is: 10,268,335.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,401,779.19 : 17,115,412.94 = 7,440,406.57 : x
  2. Step 2: Convert to fraction form
    12,401,779.19/17,115,412.94 = 7,440,406.57/x
  3. Step 3: Cross multiply
    12,401,779.19x = 17,115,412.94 × 7,440,406.57
  4. Step 4: Simplify right side
    12,401,779.19x = 127,345,630,940,985.06
  5. Step 5: Solve for x
    x = 127,345,630,940,985.06/12,401,779.19
  6. Step 6: Final answer
    x = 10,268,335.62

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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.