Home / 253,837,393.98-380,789,985.87-100,447,578.15

Finding the Fourth Proportional to 253,837,393.98, 380,789,985.87 and 100,447,578.15

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Solution

The fourth proportional to 253,837,393.98, 380,789,985.87 and 100,447,578.15 is: 150,684,779.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,837,393.98 : 380,789,985.87 = 100,447,578.15 : x
  2. Step 2: Convert to fraction form
    253,837,393.98/380,789,985.87 = 100,447,578.15/x
  3. Step 3: Cross multiply
    253,837,393.98x = 380,789,985.87 × 100,447,578.15
  4. Step 4: Simplify right side
    253,837,393.98x = 38,249,431,864,414,224
  5. Step 5: Solve for x
    x = 38,249,431,864,414,224/253,837,393.98
  6. Step 6: Final answer
    x = 150,684,779.99

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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.