Home / 815,090,403.12-1,220,339,647.80-732,440,698.80

Finding the Fourth Proportional to 815,090,403.12, 1,220,339,647.80 and 732,440,698.80

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Solution

The fourth proportional to 815,090,403.12, 1,220,339,647.80 and 732,440,698.80 is: 1,096,597,900.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,090,403.12 : 1,220,339,647.80 = 732,440,698.80 : x
  2. Step 2: Convert to fraction form
    815,090,403.12/1,220,339,647.80 = 732,440,698.80/x
  3. Step 3: Cross multiply
    815,090,403.12x = 1,220,339,647.80 × 732,440,698.80
  4. Step 4: Simplify right side
    815,090,403.12x = 893,826,424,407,977,728
  5. Step 5: Solve for x
    x = 893,826,424,407,977,728/815,090,403.12
  6. Step 6: Final answer
    x = 1,096,597,900.04

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1.5x scale

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.