Home / 39,929,782.40-59,894,673.60-21,789,929.60

Finding the Fourth Proportional to 39,929,782.40, 59,894,673.60 and 21,789,929.60

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Solution

The fourth proportional to 39,929,782.40, 59,894,673.60 and 21,789,929.60 is: 32,684,894.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,929,782.40 : 59,894,673.60 = 21,789,929.60 : x
  2. Step 2: Convert to fraction form
    39,929,782.40/59,894,673.60 = 21,789,929.60/x
  3. Step 3: Cross multiply
    39,929,782.40x = 59,894,673.60 × 21,789,929.60
  4. Step 4: Simplify right side
    39,929,782.40x = 1,305,100,721,158,978.75
  5. Step 5: Solve for x
    x = 1,305,100,721,158,978.75/39,929,782.40
  6. Step 6: Final answer
    x = 32,684,894.40

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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.