Home / 1,437,138,136.80-2,155,707,205.20-1,291,735,879.20

Finding the Fourth Proportional to 1,437,138,136.80, 2,155,707,205.20 and 1,291,735,879.20

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Solution

The fourth proportional to 1,437,138,136.80, 2,155,707,205.20 and 1,291,735,879.20 is: 1,937,603,818.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,437,138,136.80 : 2,155,707,205.20 = 1,291,735,879.20 : x
  2. Step 2: Convert to fraction form
    1,437,138,136.80/2,155,707,205.20 = 1,291,735,879.20/x
  3. Step 3: Cross multiply
    1,437,138,136.80x = 2,155,707,205.20 × 1,291,735,879.20
  4. Step 4: Simplify right side
    1,437,138,136.80x = 2,784,604,342,006,796,800
  5. Step 5: Solve for x
    x = 2,784,604,342,006,796,800/1,437,138,136.80
  6. Step 6: Final answer
    x = 1,937,603,818.80

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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.