Home / 290,637,464.40-436,040,177.40-86,170,460.40

Finding the Fourth Proportional to 290,637,464.40, 436,040,177.40 and 86,170,460.40

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Solution

The fourth proportional to 290,637,464.40, 436,040,177.40 and 86,170,460.40 is: 129,280,589.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,637,464.40 : 436,040,177.40 = 86,170,460.40 : x
  2. Step 2: Convert to fraction form
    290,637,464.40/436,040,177.40 = 86,170,460.40/x
  3. Step 3: Cross multiply
    290,637,464.40x = 436,040,177.40 × 86,170,460.40
  4. Step 4: Simplify right side
    290,637,464.40x = 37,573,782,839,455,672
  5. Step 5: Solve for x
    x = 37,573,782,839,455,672/290,637,464.40
  6. Step 6: Final answer
    x = 129,280,589.88

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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.