Home / 21,789,428.42-30,069,047.84-12,000,783.44

Finding the Fourth Proportional to 21,789,428.42, 30,069,047.84 and 12,000,783.44

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Solution

The fourth proportional to 21,789,428.42, 30,069,047.84 and 12,000,783.44 is: 16,560,881.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,789,428.42 : 30,069,047.84 = 12,000,783.44 : x
  2. Step 2: Convert to fraction form
    21,789,428.42/30,069,047.84 = 12,000,783.44/x
  3. Step 3: Cross multiply
    21,789,428.42x = 30,069,047.84 × 12,000,783.44
  4. Step 4: Simplify right side
    21,789,428.42x = 360,852,131,164,490.62
  5. Step 5: Solve for x
    x = 360,852,131,164,490.62/21,789,428.42
  6. Step 6: Final answer
    x = 16,560,881.01

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1.5x scale

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.