Home / 13,176,125.89-18,178,653.13-7,668,332.75

Finding the Fourth Proportional to 13,176,125.89, 18,178,653.13 and 7,668,332.75

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Solution

The fourth proportional to 13,176,125.89, 18,178,653.13 and 7,668,332.75 is: 10,579,738.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,176,125.89 : 18,178,653.13 = 7,668,332.75 : x
  2. Step 2: Convert to fraction form
    13,176,125.89/18,178,653.13 = 7,668,332.75/x
  3. Step 3: Cross multiply
    13,176,125.89x = 18,178,653.13 × 7,668,332.75
  4. Step 4: Simplify right side
    13,176,125.89x = 139,399,961,173,944.83
  5. Step 5: Solve for x
    x = 139,399,961,173,944.83/13,176,125.89
  6. Step 6: Final answer
    x = 10,579,738.11

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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.