Home / 253,837,393.48-380,789,985.12-100,447,577.65

Finding the Fourth Proportional to 253,837,393.48, 380,789,985.12 and 100,447,577.65

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Solution

The fourth proportional to 253,837,393.48, 380,789,985.12 and 100,447,577.65 is: 150,684,779.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,837,393.48 : 380,789,985.12 = 100,447,577.65 : x
  2. Step 2: Convert to fraction form
    253,837,393.48/380,789,985.12 = 100,447,577.65/x
  3. Step 3: Cross multiply
    253,837,393.48x = 380,789,985.12 × 100,447,577.65
  4. Step 4: Simplify right side
    253,837,393.48x = 38,249,431,598,683,544
  5. Step 5: Solve for x
    x = 38,249,431,598,683,544/253,837,393.48
  6. Step 6: Final answer
    x = 150,684,779.24

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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.