Home / 916,103,611.20-1,373,259,621.60-819,357,729.60

Finding the Fourth Proportional to 916,103,611.20, 1,373,259,621.60 and 819,357,729.60

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Solution

The fourth proportional to 916,103,611.20, 1,373,259,621.60 and 819,357,729.60 is: 1,228,235,400.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,103,611.20 : 1,373,259,621.60 = 819,357,729.60 : x
  2. Step 2: Convert to fraction form
    916,103,611.20/1,373,259,621.60 = 819,357,729.60/x
  3. Step 3: Cross multiply
    916,103,611.20x = 1,373,259,621.60 × 819,357,729.60
  4. Step 4: Simplify right side
    916,103,611.20x = 1,125,190,885,705,531,136
  5. Step 5: Solve for x
    x = 1,125,190,885,705,531,136/916,103,611.20
  6. Step 6: Final answer
    x = 1,228,235,400.39

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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.