Home / 12,405,800.40-17,120,014.31-6,899,055.09

Finding the Fourth Proportional to 12,405,800.40, 17,120,014.31 and 6,899,055.09

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Solution

The fourth proportional to 12,405,800.40, 17,120,014.31 and 6,899,055.09 is: 9,520,701.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,405,800.40 : 17,120,014.31 = 6,899,055.09 : x
  2. Step 2: Convert to fraction form
    12,405,800.40/17,120,014.31 = 6,899,055.09/x
  3. Step 3: Cross multiply
    12,405,800.40x = 17,120,014.31 × 6,899,055.09
  4. Step 4: Simplify right side
    12,405,800.40x = 118,111,921,866,278.33
  5. Step 5: Solve for x
    x = 118,111,921,866,278.33/12,405,800.40
  6. Step 6: Final answer
    x = 9,520,701.45

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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.