Home / 5,130,406.32-7,078,241.61-2,954,905.89

Finding the Fourth Proportional to 5,130,406.32, 7,078,241.61 and 2,954,905.89

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Solution

The fourth proportional to 5,130,406.32, 7,078,241.61 and 2,954,905.89 is: 4,076,779.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,130,406.32 : 7,078,241.61 = 2,954,905.89 : x
  2. Step 2: Convert to fraction form
    5,130,406.32/7,078,241.61 = 2,954,905.89/x
  3. Step 3: Cross multiply
    5,130,406.32x = 7,078,241.61 × 2,954,905.89
  4. Step 4: Simplify right side
    5,130,406.32x = 20,915,537,824,232.09
  5. Step 5: Solve for x
    x = 20,915,537,824,232.09/5,130,406.32
  6. Step 6: Final answer
    x = 4,076,779.99

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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.