Home / 12,128,980.06-18,193,396.65-3,031,030.90

Finding the Fourth Proportional to 12,128,980.06, 18,193,396.65 and 3,031,030.90

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Solution

The fourth proportional to 12,128,980.06, 18,193,396.65 and 3,031,030.90 is: 4,546,528.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,128,980.06 : 18,193,396.65 = 3,031,030.90 : x
  2. Step 2: Convert to fraction form
    12,128,980.06/18,193,396.65 = 3,031,030.90/x
  3. Step 3: Cross multiply
    12,128,980.06x = 18,193,396.65 × 3,031,030.90
  4. Step 4: Simplify right side
    12,128,980.06x = 55,144,747,422,106.48
  5. Step 5: Solve for x
    x = 55,144,747,422,106.48/12,128,980.06
  6. Step 6: Final answer
    x = 4,546,528.00

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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.