Home / 699,408,047.20-1,049,112,070.80-214,670,869.60

Finding the Fourth Proportional to 699,408,047.20, 1,049,112,070.80 and 214,670,869.60

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Solution

The fourth proportional to 699,408,047.20, 1,049,112,070.80 and 214,670,869.60 is: 322,006,304.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,408,047.20 : 1,049,112,070.80 = 214,670,869.60 : x
  2. Step 2: Convert to fraction form
    699,408,047.20/1,049,112,070.80 = 214,670,869.60/x
  3. Step 3: Cross multiply
    699,408,047.20x = 1,049,112,070.80 × 214,670,869.60
  4. Step 4: Simplify right side
    699,408,047.20x = 225,213,800,546,492,736
  5. Step 5: Solve for x
    x = 225,213,800,546,492,736/699,408,047.20
  6. Step 6: Final answer
    x = 322,006,304.40

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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.