Home / 39,521,718-54,539,970.84-21,433,782

Finding the Fourth Proportional to 39,521,718, 54,539,970.84 and 21,433,782

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Solution

The fourth proportional to 39,521,718, 54,539,970.84 and 21,433,782 is: 29,578,619.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,521,718 : 54,539,970.84 = 21,433,782 : x
  2. Step 2: Convert to fraction form
    39,521,718/54,539,970.84 = 21,433,782/x
  3. Step 3: Cross multiply
    39,521,718x = 54,539,970.84 × 21,433,782
  4. Step 4: Simplify right side
    39,521,718x = 1,168,997,845,270,917
  5. Step 5: Solve for x
    x = 1,168,997,845,270,917/39,521,718
  6. Step 6: Final answer
    x = 29,578,619.16

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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.