Home / 128,065,579.66-176,730,462.12-69,328,201.24

Finding the Fourth Proportional to 128,065,579.66, 176,730,462.12 and 69,328,201.24

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Solution

The fourth proportional to 128,065,579.66, 176,730,462.12 and 69,328,201.24 is: 95,672,897.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,065,579.66 : 176,730,462.12 = 69,328,201.24 : x
  2. Step 2: Convert to fraction form
    128,065,579.66/176,730,462.12 = 69,328,201.24/x
  3. Step 3: Cross multiply
    128,065,579.66x = 176,730,462.12 × 69,328,201.24
  4. Step 4: Simplify right side
    128,065,579.66x = 12,252,405,043,093,556
  5. Step 5: Solve for x
    x = 12,252,405,043,093,556/128,065,579.66
  6. Step 6: Final answer
    x = 95,672,897.24

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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.