Home / 637,460,952.98-879,672,890.88-355,188,809.60

Finding the Fourth Proportional to 637,460,952.98, 879,672,890.88 and 355,188,809.60

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Solution

The fourth proportional to 637,460,952.98, 879,672,890.88 and 355,188,809.60 is: 490,147,616.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,460,952.98 : 879,672,890.88 = 355,188,809.60 : x
  2. Step 2: Convert to fraction form
    637,460,952.98/879,672,890.88 = 355,188,809.60/x
  3. Step 3: Cross multiply
    637,460,952.98x = 879,672,890.88 × 355,188,809.60
  4. Step 4: Simplify right side
    637,460,952.98x = 312,449,966,949,057,920
  5. Step 5: Solve for x
    x = 312,449,966,949,057,920/637,460,952.98
  6. Step 6: Final answer
    x = 490,147,616.87

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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.