Home / 9,109,387.78-12,570,955.72-4,979,435.28

Finding the Fourth Proportional to 9,109,387.78, 12,570,955.72 and 4,979,435.28

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Solution

The fourth proportional to 9,109,387.78, 12,570,955.72 and 4,979,435.28 is: 6,871,621.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,109,387.78 : 12,570,955.72 = 4,979,435.28 : x
  2. Step 2: Convert to fraction form
    9,109,387.78/12,570,955.72 = 4,979,435.28/x
  3. Step 3: Cross multiply
    9,109,387.78x = 12,570,955.72 × 4,979,435.28
  4. Step 4: Simplify right side
    9,109,387.78x = 62,596,260,415,485.80
  5. Step 5: Solve for x
    x = 62,596,260,415,485.80/9,109,387.78
  6. Step 6: Final answer
    x = 6,871,621.01

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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.