Home / 28,154,692-38,853,578.64-15,277,636

Finding the Fourth Proportional to 28,154,692, 38,853,578.64 and 15,277,636

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Solution

The fourth proportional to 28,154,692, 38,853,578.64 and 15,277,636 is: 21,083,193.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,154,692 : 38,853,578.64 = 15,277,636 : x
  2. Step 2: Convert to fraction form
    28,154,692/38,853,578.64 = 15,277,636/x
  3. Step 3: Cross multiply
    28,154,692x = 38,853,578.64 × 15,277,636
  4. Step 4: Simplify right side
    28,154,692x = 593,590,831,759,295
  5. Step 5: Solve for x
    x = 593,590,831,759,295/28,154,692
  6. Step 6: Final answer
    x = 21,083,193.94

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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.