Home / 7,638,312.78-10,540,661.40-4,200,553.80

Finding the Fourth Proportional to 7,638,312.78, 10,540,661.40 and 4,200,553.80

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Solution

The fourth proportional to 7,638,312.78, 10,540,661.40 and 4,200,553.80 is: 5,796,648.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,638,312.78 : 10,540,661.40 = 4,200,553.80 : x
  2. Step 2: Convert to fraction form
    7,638,312.78/10,540,661.40 = 4,200,553.80/x
  3. Step 3: Cross multiply
    7,638,312.78x = 10,540,661.40 × 4,200,553.80
  4. Step 4: Simplify right side
    7,638,312.78x = 44,276,615,298,283.32
  5. Step 5: Solve for x
    x = 44,276,615,298,283.32/7,638,312.78
  6. Step 6: Final answer
    x = 5,796,648.63

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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.