Home / 12,100,030.80-18,171,041.40-6,431,326.80

Finding the Fourth Proportional to 12,100,030.80, 18,171,041.40 and 6,431,326.80

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Solution

The fourth proportional to 12,100,030.80, 18,171,041.40 and 6,431,326.80 is: 9,658,149.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,100,030.80 : 18,171,041.40 = 6,431,326.80 : x
  2. Step 2: Convert to fraction form
    12,100,030.80/18,171,041.40 = 6,431,326.80/x
  3. Step 3: Cross multiply
    12,100,030.80x = 18,171,041.40 × 6,431,326.80
  4. Step 4: Simplify right side
    12,100,030.80x = 116,863,905,539,729.50
  5. Step 5: Solve for x
    x = 116,863,905,539,729.50/12,100,030.80
  6. Step 6: Final answer
    x = 9,658,149.43

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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.