Home / 12,071,028.40-18,106,542.60-9,943,514.80

Finding the Fourth Proportional to 12,071,028.40, 18,106,542.60 and 9,943,514.80

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Solution

The fourth proportional to 12,071,028.40, 18,106,542.60 and 9,943,514.80 is: 14,915,272.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,071,028.40 : 18,106,542.60 = 9,943,514.80 : x
  2. Step 2: Convert to fraction form
    12,071,028.40/18,106,542.60 = 9,943,514.80/x
  3. Step 3: Cross multiply
    12,071,028.40x = 18,106,542.60 × 9,943,514.80
  4. Step 4: Simplify right side
    12,071,028.40x = 180,042,674,319,930.50
  5. Step 5: Solve for x
    x = 180,042,674,319,930.50/12,071,028.40
  6. Step 6: Final answer
    x = 14,915,272.20

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1.5x scale

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.