Home / 12,326,939.74-18,492,931.55-4,238,864.97

Finding the Fourth Proportional to 12,326,939.74, 18,492,931.55 and 4,238,864.97

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Solution

The fourth proportional to 12,326,939.74, 18,492,931.55 and 4,238,864.97 is: 6,359,164.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,326,939.74 : 18,492,931.55 = 4,238,864.97 : x
  2. Step 2: Convert to fraction form
    12,326,939.74/18,492,931.55 = 4,238,864.97/x
  3. Step 3: Cross multiply
    12,326,939.74x = 18,492,931.55 × 4,238,864.97
  4. Step 4: Simplify right side
    12,326,939.74x = 78,389,039,739,902.80
  5. Step 5: Solve for x
    x = 78,389,039,739,902.80/12,326,939.74
  6. Step 6: Final answer
    x = 6,359,164.67

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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.