Home / 214,638,047.51-321,781,143.38-76,384,927.67

Finding the Fourth Proportional to 214,638,047.51, 321,781,143.38 and 76,384,927.67

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Solution

The fourth proportional to 214,638,047.51, 321,781,143.38 and 76,384,927.67 is: 114,514,782.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,638,047.51 : 321,781,143.38 = 76,384,927.67 : x
  2. Step 2: Convert to fraction form
    214,638,047.51/321,781,143.38 = 76,384,927.67/x
  3. Step 3: Cross multiply
    214,638,047.51x = 321,781,143.38 × 76,384,927.67
  4. Step 4: Simplify right side
    214,638,047.51x = 24,579,229,360,660,372
  5. Step 5: Solve for x
    x = 24,579,229,360,660,372/214,638,047.51
  6. Step 6: Final answer
    x = 114,514,782.66

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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.