Home / 705,644,539.03-973,911,350.74-408,450,645.21

Finding the Fourth Proportional to 705,644,539.03, 973,911,350.74 and 408,450,645.21

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Solution

The fourth proportional to 705,644,539.03, 973,911,350.74 and 408,450,645.21 is: 563,732,442.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,644,539.03 : 973,911,350.74 = 408,450,645.21 : x
  2. Step 2: Convert to fraction form
    705,644,539.03/973,911,350.74 = 408,450,645.21/x
  3. Step 3: Cross multiply
    705,644,539.03x = 973,911,350.74 × 408,450,645.21
  4. Step 4: Simplify right side
    705,644,539.03x = 397,794,719,587,095,616
  5. Step 5: Solve for x
    x = 397,794,719,587,095,616/705,644,539.03
  6. Step 6: Final answer
    x = 563,732,442.59

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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.