Home / 21,290,463.42-31,935,695.12-6,718,859.76

Finding the Fourth Proportional to 21,290,463.42, 31,935,695.12 and 6,718,859.76

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Solution

The fourth proportional to 21,290,463.42, 31,935,695.12 and 6,718,859.76 is: 10,078,289.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,290,463.42 : 31,935,695.12 = 6,718,859.76 : x
  2. Step 2: Convert to fraction form
    21,290,463.42/31,935,695.12 = 6,718,859.76/x
  3. Step 3: Cross multiply
    21,290,463.42x = 31,935,695.12 × 6,718,859.76
  4. Step 4: Simplify right side
    21,290,463.42x = 214,571,456,849,396.38
  5. Step 5: Solve for x
    x = 214,571,456,849,396.38/21,290,463.42
  6. Step 6: Final answer
    x = 10,078,289.64

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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.