Home / 170,018,655.94-255,018,391.20-75,344,447.68

Finding the Fourth Proportional to 170,018,655.94, 255,018,391.20 and 75,344,447.68

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Solution

The fourth proportional to 170,018,655.94, 255,018,391.20 and 75,344,447.68 is: 113,012,420.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,018,655.94 : 255,018,391.20 = 75,344,447.68 : x
  2. Step 2: Convert to fraction form
    170,018,655.94/255,018,391.20 = 75,344,447.68/x
  3. Step 3: Cross multiply
    170,018,655.94x = 255,018,391.20 × 75,344,447.68
  4. Step 4: Simplify right side
    170,018,655.94x = 19,214,219,833,206,172
  5. Step 5: Solve for x
    x = 19,214,219,833,206,172/170,018,655.94
  6. Step 6: Final answer
    x = 113,012,420.47

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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.