Home / 705,644,540.03-973,911,352.12-408,450,646.21

Finding the Fourth Proportional to 705,644,540.03, 973,911,352.12 and 408,450,646.21

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Solution

The fourth proportional to 705,644,540.03, 973,911,352.12 and 408,450,646.21 is: 563,732,443.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,644,540.03 : 973,911,352.12 = 408,450,646.21 : x
  2. Step 2: Convert to fraction form
    705,644,540.03/973,911,352.12 = 408,450,646.21/x
  3. Step 3: Cross multiply
    705,644,540.03x = 973,911,352.12 × 408,450,646.21
  4. Step 4: Simplify right side
    705,644,540.03x = 397,794,721,124,668,864
  5. Step 5: Solve for x
    x = 397,794,721,124,668,864/705,644,540.03
  6. Step 6: Final answer
    x = 563,732,443.97

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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.