Home / 253,837,394.98-380,789,987.37-100,447,579.15

Finding the Fourth Proportional to 253,837,394.98, 380,789,987.37 and 100,447,579.15

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Solution

The fourth proportional to 253,837,394.98, 380,789,987.37 and 100,447,579.15 is: 150,684,781.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,837,394.98 : 380,789,987.37 = 100,447,579.15 : x
  2. Step 2: Convert to fraction form
    253,837,394.98/380,789,987.37 = 100,447,579.15/x
  3. Step 3: Cross multiply
    253,837,394.98x = 380,789,987.37 × 100,447,579.15
  4. Step 4: Simplify right side
    253,837,394.98x = 38,249,432,395,875,576
  5. Step 5: Solve for x
    x = 38,249,432,395,875,576/253,837,394.98
  6. Step 6: Final answer
    x = 150,684,781.49

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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.