Home / 128,065,552.20-176,730,423.48-69,328,174.32

Finding the Fourth Proportional to 128,065,552.20, 176,730,423.48 and 69,328,174.32

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Solution

The fourth proportional to 128,065,552.20, 176,730,423.48 and 69,328,174.32 is: 95,672,859.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,065,552.20 : 176,730,423.48 = 69,328,174.32 : x
  2. Step 2: Convert to fraction form
    128,065,552.20/176,730,423.48 = 69,328,174.32/x
  3. Step 3: Cross multiply
    128,065,552.20x = 176,730,423.48 × 69,328,174.32
  4. Step 4: Simplify right side
    128,065,552.20x = 12,252,397,606,668,860
  5. Step 5: Solve for x
    x = 12,252,397,606,668,860/128,065,552.20
  6. Step 6: Final answer
    x = 95,672,859.69

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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.