Home / 1,188,804,549.60-1,783,206,824.40-637,806,520.80

Finding the Fourth Proportional to 1,188,804,549.60, 1,783,206,824.40 and 637,806,520.80

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Solution

The fourth proportional to 1,188,804,549.60, 1,783,206,824.40 and 637,806,520.80 is: 956,709,781.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,804,549.60 : 1,783,206,824.40 = 637,806,520.80 : x
  2. Step 2: Convert to fraction form
    1,188,804,549.60/1,783,206,824.40 = 637,806,520.80/x
  3. Step 3: Cross multiply
    1,188,804,549.60x = 1,783,206,824.40 × 637,806,520.80
  4. Step 4: Simplify right side
    1,188,804,549.60x = 1,137,340,940,537,380,480
  5. Step 5: Solve for x
    x = 1,137,340,940,537,380,480/1,188,804,549.60
  6. Step 6: Final answer
    x = 956,709,781.20

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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.