Home / 51,119,191.12-76,678,788.34-12,780,705.23

Finding the Fourth Proportional to 51,119,191.12, 76,678,788.34 and 12,780,705.23

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Solution

The fourth proportional to 51,119,191.12, 76,678,788.34 and 12,780,705.23 is: 19,171,058.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,119,191.12 : 76,678,788.34 = 12,780,705.23 : x
  2. Step 2: Convert to fraction form
    51,119,191.12/76,678,788.34 = 12,780,705.23/x
  3. Step 3: Cross multiply
    51,119,191.12x = 76,678,788.34 × 12,780,705.23
  4. Step 4: Simplify right side
    51,119,191.12x = 980,008,990,783,707.12
  5. Step 5: Solve for x
    x = 980,008,990,783,707.12/51,119,191.12
  6. Step 6: Final answer
    x = 19,171,058.25

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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.