Home / 12,308,219.40-18,465,741.90-5,123,137.80

Finding the Fourth Proportional to 12,308,219.40, 18,465,741.90 and 5,123,137.80

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Solution

The fourth proportional to 12,308,219.40, 18,465,741.90 and 5,123,137.80 is: 7,686,127.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,308,219.40 : 18,465,741.90 = 5,123,137.80 : x
  2. Step 2: Convert to fraction form
    12,308,219.40/18,465,741.90 = 5,123,137.80/x
  3. Step 3: Cross multiply
    12,308,219.40x = 18,465,741.90 × 5,123,137.80
  4. Step 4: Simplify right side
    12,308,219.40x = 94,602,540,332,933.81
  5. Step 5: Solve for x
    x = 94,602,540,332,933.81/12,308,219.40
  6. Step 6: Final answer
    x = 7,686,127.23

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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.