Home / 12,779,942,016.36-17,638,071,977.10-7,354,366,122.96

Finding the Fourth Proportional to 12,779,942,016.36, 17,638,071,977.10 and 7,354,366,122.96

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Solution

The fourth proportional to 12,779,942,016.36, 17,638,071,977.10 and 7,354,366,122.96 is: 10,150,033,455.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,779,942,016.36 : 17,638,071,977.10 = 7,354,366,122.96 : x
  2. Step 2: Convert to fraction form
    12,779,942,016.36/17,638,071,977.10 = 7,354,366,122.96/x
  3. Step 3: Cross multiply
    12,779,942,016.36x = 17,638,071,977.10 × 7,354,366,122.96
  4. Step 4: Simplify right side
    12,779,942,016.36x = 129,716,839,022,714,339,328
  5. Step 5: Solve for x
    x = 129,716,839,022,714,339,328/12,779,942,016.36
  6. Step 6: Final answer
    x = 10,150,033,455.29

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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.