Home / 21,290,465.42-31,935,698.12-6,718,861.76

Finding the Fourth Proportional to 21,290,465.42, 31,935,698.12 and 6,718,861.76

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Solution

The fourth proportional to 21,290,465.42, 31,935,698.12 and 6,718,861.76 is: 10,078,292.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,290,465.42 : 31,935,698.12 = 6,718,861.76 : x
  2. Step 2: Convert to fraction form
    21,290,465.42/31,935,698.12 = 6,718,861.76/x
  3. Step 3: Cross multiply
    21,290,465.42x = 31,935,698.12 × 6,718,861.76
  4. Step 4: Simplify right side
    21,290,465.42x = 214,571,540,877,371.91
  5. Step 5: Solve for x
    x = 214,571,540,877,371.91/21,290,465.42
  6. Step 6: Final answer
    x = 10,078,292.64

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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.