Home / 78,889,680.96-118,334,522.43-21,381,952.09

Finding the Fourth Proportional to 78,889,680.96, 118,334,522.43 and 21,381,952.09

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Solution

The fourth proportional to 78,889,680.96, 118,334,522.43 and 21,381,952.09 is: 32,072,928.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,889,680.96 : 118,334,522.43 = 21,381,952.09 : x
  2. Step 2: Convert to fraction form
    78,889,680.96/118,334,522.43 = 21,381,952.09/x
  3. Step 3: Cross multiply
    78,889,680.96x = 118,334,522.43 × 21,381,952.09
  4. Step 4: Simplify right side
    78,889,680.96x = 2,530,223,089,191,290.50
  5. Step 5: Solve for x
    x = 2,530,223,089,191,290.50/78,889,680.96
  6. Step 6: Final answer
    x = 32,072,928.40

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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.