Home / 14,311,581.78-19,749,967.91-7,785,195.67

Finding the Fourth Proportional to 14,311,581.78, 19,749,967.91 and 7,785,195.67

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Solution

The fourth proportional to 14,311,581.78, 19,749,967.91 and 7,785,195.67 is: 10,743,561.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,311,581.78 : 19,749,967.91 = 7,785,195.67 : x
  2. Step 2: Convert to fraction form
    14,311,581.78/19,749,967.91 = 7,785,195.67/x
  3. Step 3: Cross multiply
    14,311,581.78x = 19,749,967.91 × 7,785,195.67
  4. Step 4: Simplify right side
    14,311,581.78x = 153,757,364,655,570.94
  5. Step 5: Solve for x
    x = 153,757,364,655,570.94/14,311,581.78
  6. Step 6: Final answer
    x = 10,743,561.89

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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.