Home / 501,980,324.93-692,749,670.96-278,971,405.94

Finding the Fourth Proportional to 501,980,324.93, 692,749,670.96 and 278,971,405.94

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Solution

The fourth proportional to 501,980,324.93, 692,749,670.96 and 278,971,405.94 is: 384,989,889.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,980,324.93 : 692,749,670.96 = 278,971,405.94 : x
  2. Step 2: Convert to fraction form
    501,980,324.93/692,749,670.96 = 278,971,405.94/x
  3. Step 3: Cross multiply
    501,980,324.93x = 692,749,670.96 × 278,971,405.94
  4. Step 4: Simplify right side
    501,980,324.93x = 193,257,349,667,324,992
  5. Step 5: Solve for x
    x = 193,257,349,667,324,992/501,980,324.93
  6. Step 6: Final answer
    x = 384,989,889.19

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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.