Home / 386,350,131.75-533,114,790.59-261,174,684.87

Finding the Fourth Proportional to 386,350,131.75, 533,114,790.59 and 261,174,684.87

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Solution

The fourth proportional to 386,350,131.75, 533,114,790.59 and 261,174,684.87 is: 360,388,352.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,350,131.75 : 533,114,790.59 = 261,174,684.87 : x
  2. Step 2: Convert to fraction form
    386,350,131.75/533,114,790.59 = 261,174,684.87/x
  3. Step 3: Cross multiply
    386,350,131.75x = 533,114,790.59 × 261,174,684.87
  4. Step 4: Simplify right side
    386,350,131.75x = 139,236,087,430,573,408
  5. Step 5: Solve for x
    x = 139,236,087,430,573,408/386,350,131.75
  6. Step 6: Final answer
    x = 360,388,352.40

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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.