Home / 72,805,271.04-109,208,205.44-18,217,708.16

Finding the Fourth Proportional to 72,805,271.04, 109,208,205.44 and 18,217,708.16

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Solution

The fourth proportional to 72,805,271.04, 109,208,205.44 and 18,217,708.16 is: 27,326,637.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,805,271.04 : 109,208,205.44 = 18,217,708.16 : x
  2. Step 2: Convert to fraction form
    72,805,271.04/109,208,205.44 = 18,217,708.16/x
  3. Step 3: Cross multiply
    72,805,271.04x = 109,208,205.44 × 18,217,708.16
  4. Step 4: Simplify right side
    72,805,271.04x = 1,989,523,215,383,244.25
  5. Step 5: Solve for x
    x = 1,989,523,215,383,244.25/72,805,271.04
  6. Step 6: Final answer
    x = 27,326,637.03

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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.