Home / 1,991,762,679.40-2,985,628,479.90-1,173,453,764.20

Finding the Fourth Proportional to 1,991,762,679.40, 2,985,628,479.90 and 1,173,453,764.20

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Solution

The fourth proportional to 1,991,762,679.40, 2,985,628,479.90 and 1,173,453,764.20 is: 1,758,993,184.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,991,762,679.40 : 2,985,628,479.90 = 1,173,453,764.20 : x
  2. Step 2: Convert to fraction form
    1,991,762,679.40/2,985,628,479.90 = 1,173,453,764.20/x
  3. Step 3: Cross multiply
    1,991,762,679.40x = 2,985,628,479.90 × 1,173,453,764.20
  4. Step 4: Simplify right side
    1,991,762,679.40x = 3,503,496,978,241,379,328
  5. Step 5: Solve for x
    x = 3,503,496,978,241,379,328/1,991,762,679.40
  6. Step 6: Final answer
    x = 1,758,993,184.52

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.