Home / 264,686,486.40-397,029,729.60-80,453,606.40

Finding the Fourth Proportional to 264,686,486.40, 397,029,729.60 and 80,453,606.40

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Solution

The fourth proportional to 264,686,486.40, 397,029,729.60 and 80,453,606.40 is: 120,680,409.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,686,486.40 : 397,029,729.60 = 80,453,606.40 : x
  2. Step 2: Convert to fraction form
    264,686,486.40/397,029,729.60 = 80,453,606.40/x
  3. Step 3: Cross multiply
    264,686,486.40x = 397,029,729.60 × 80,453,606.40
  4. Step 4: Simplify right side
    264,686,486.40x = 31,942,473,594,336,832
  5. Step 5: Solve for x
    x = 31,942,473,594,336,832/264,686,486.40
  6. Step 6: Final answer
    x = 120,680,409.60

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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.