Home / 28,751,247,648.24-39,678,774,899.82-15,890,610,944.40

Finding the Fourth Proportional to 28,751,247,648.24, 39,678,774,899.82 and 15,890,610,944.40

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Solution

The fourth proportional to 28,751,247,648.24, 39,678,774,899.82 and 15,890,610,944.40 is: 21,930,177,862.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,751,247,648.24 : 39,678,774,899.82 = 15,890,610,944.40 : x
  2. Step 2: Convert to fraction form
    28,751,247,648.24/39,678,774,899.82 = 15,890,610,944.40/x
  3. Step 3: Cross multiply
    28,751,247,648.24x = 39,678,774,899.82 × 15,890,610,944.40
  4. Step 4: Simplify right side
    28,751,247,648.24x = 630,519,974,683,463,647,232
  5. Step 5: Solve for x
    x = 630,519,974,683,463,647,232/28,751,247,648.24
  6. Step 6: Final answer
    x = 21,930,177,862.11

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1.5x scale

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.