Home / 20,143,728,468.40-30,215,592,702.60-11,436,599,124.40

Finding the Fourth Proportional to 20,143,728,468.40, 30,215,592,702.60 and 11,436,599,124.40

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Solution

The fourth proportional to 20,143,728,468.40, 30,215,592,702.60 and 11,436,599,124.40 is: 17,154,898,686.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,143,728,468.40 : 30,215,592,702.60 = 11,436,599,124.40 : x
  2. Step 2: Convert to fraction form
    20,143,728,468.40/30,215,592,702.60 = 11,436,599,124.40/x
  3. Step 3: Cross multiply
    20,143,728,468.40x = 30,215,592,702.60 × 11,436,599,124.40
  4. Step 4: Simplify right side
    20,143,728,468.40x = 345,563,621,045,782,183,936
  5. Step 5: Solve for x
    x = 345,563,621,045,782,183,936/20,143,728,468.40
  6. Step 6: Final answer
    x = 17,154,898,686.60

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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.