Home / 1,991,759,919.40-2,985,624,339.90-1,173,451,004.20

Finding the Fourth Proportional to 1,991,759,919.40, 2,985,624,339.90 and 1,173,451,004.20

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Solution

The fourth proportional to 1,991,759,919.40, 2,985,624,339.90 and 1,173,451,004.20 is: 1,758,989,045.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,991,759,919.40 : 2,985,624,339.90 = 1,173,451,004.20 : x
  2. Step 2: Convert to fraction form
    1,991,759,919.40/2,985,624,339.90 = 1,173,451,004.20/x
  3. Step 3: Cross multiply
    1,991,759,919.40x = 2,985,624,339.90 × 1,173,451,004.20
  4. Step 4: Simplify right side
    1,991,759,919.40x = 3,503,483,879,819,617,280
  5. Step 5: Solve for x
    x = 3,503,483,879,819,617,280/1,991,759,919.40
  6. Step 6: Final answer
    x = 1,758,989,045.67

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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.