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Finding the Fourth Proportional to 290,678,889,671.20, 436,018,334,506.80 and 290,678,889,671.20

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Solution

The fourth proportional to 290,678,889,671.20, 436,018,334,506.80 and 290,678,889,671.20 is: 436,018,334,506.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,678,889,671.20 : 436,018,334,506.80 = 290,678,889,671.20 : x
  2. Step 2: Convert to fraction form
    290,678,889,671.20/436,018,334,506.80 = 290,678,889,671.20/x
  3. Step 3: Cross multiply
    290,678,889,671.20x = 436,018,334,506.80 × 290,678,889,671.20
  4. Step 4: Simplify right side
    290,678,889,671.20x = 126,741,325,350,722,496,102,400
  5. Step 5: Solve for x
    x = 126,741,325,350,722,496,102,400/290,678,889,671.20
  6. Step 6: Final answer
    x = 436,018,334,506.80

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1.5x scale

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.