Home / 637,460,834.85-879,672,727.53-355,188,690.77

Finding the Fourth Proportional to 637,460,834.85, 879,672,727.53 and 355,188,690.77

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Solution

The fourth proportional to 637,460,834.85, 879,672,727.53 and 355,188,690.77 is: 490,147,452.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,460,834.85 : 879,672,727.53 = 355,188,690.77 : x
  2. Step 2: Convert to fraction form
    637,460,834.85/879,672,727.53 = 355,188,690.77/x
  3. Step 3: Cross multiply
    637,460,834.85x = 879,672,727.53 × 355,188,690.77
  4. Step 4: Simplify right side
    637,460,834.85x = 312,449,804,393,057,280
  5. Step 5: Solve for x
    x = 312,449,804,393,057,280/637,460,834.85
  6. Step 6: Final answer
    x = 490,147,452.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.