Home / 1,325,509,045.17-1,987,944,703.14-405,393,355.41

Finding the Fourth Proportional to 1,325,509,045.17, 1,987,944,703.14 and 405,393,355.41

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Solution

The fourth proportional to 1,325,509,045.17, 1,987,944,703.14 and 405,393,355.41 is: 607,992,511.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325,509,045.17 : 1,987,944,703.14 = 405,393,355.41 : x
  2. Step 2: Convert to fraction form
    1,325,509,045.17/1,987,944,703.14 = 405,393,355.41/x
  3. Step 3: Cross multiply
    1,325,509,045.17x = 1,987,944,703.14 × 405,393,355.41
  4. Step 4: Simplify right side
    1,325,509,045.17x = 805,899,573,575,461,120
  5. Step 5: Solve for x
    x = 805,899,573,575,461,120/1,325,509,045.17
  6. Step 6: Final answer
    x = 607,992,511.64

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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.