Home / 39,521,675-54,539,911.52-21,433,739

Finding the Fourth Proportional to 39,521,675, 54,539,911.52 and 21,433,739

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Solution

The fourth proportional to 39,521,675, 54,539,911.52 and 21,433,739 is: 29,578,559.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,521,675 : 54,539,911.52 = 21,433,739 : x
  2. Step 2: Convert to fraction form
    39,521,675/54,539,911.52 = 21,433,739/x
  3. Step 3: Cross multiply
    39,521,675x = 54,539,911.52 × 21,433,739
  4. Step 4: Simplify right side
    39,521,675x = 1,168,994,228,602,773.25
  5. Step 5: Solve for x
    x = 1,168,994,228,602,773.25/39,521,675
  6. Step 6: Final answer
    x = 29,578,559.83

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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.