Home / 152,259,589.72-210,112,797.12-86,178,669.16

Finding the Fourth Proportional to 152,259,589.72, 210,112,797.12 and 86,178,669.16

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Solution

The fourth proportional to 152,259,589.72, 210,112,797.12 and 86,178,669.16 is: 118,923,486.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,259,589.72 : 210,112,797.12 = 86,178,669.16 : x
  2. Step 2: Convert to fraction form
    152,259,589.72/210,112,797.12 = 86,178,669.16/x
  3. Step 3: Cross multiply
    152,259,589.72x = 210,112,797.12 × 86,178,669.16
  4. Step 4: Simplify right side
    152,259,589.72x = 18,107,241,230,149,724
  5. Step 5: Solve for x
    x = 18,107,241,230,149,724/152,259,589.72
  6. Step 6: Final answer
    x = 118,923,486.29

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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.