Home / 20,668,928.94-31,007,874.02-6,291,621

Finding the Fourth Proportional to 20,668,928.94, 31,007,874.02 and 6,291,621

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Solution

The fourth proportional to 20,668,928.94, 31,007,874.02 and 6,291,621 is: 9,438,795.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,668,928.94 : 31,007,874.02 = 6,291,621 : x
  2. Step 2: Convert to fraction form
    20,668,928.94/31,007,874.02 = 6,291,621/x
  3. Step 3: Cross multiply
    20,668,928.94x = 31,007,874.02 × 6,291,621
  4. Step 4: Simplify right side
    20,668,928.94x = 195,089,791,349,586.41
  5. Step 5: Solve for x
    x = 195,089,791,349,586.41/20,668,928.94
  6. Step 6: Final answer
    x = 9,438,795.40

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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.