Home / 1,271,306,287.64-1,905,930,355-397,457,851.34

Finding the Fourth Proportional to 1,271,306,287.64, 1,905,930,355 and 397,457,851.34

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Solution

The fourth proportional to 1,271,306,287.64, 1,905,930,355 and 397,457,851.34 is: 595,865,049.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271,306,287.64 : 1,905,930,355 = 397,457,851.34 : x
  2. Step 2: Convert to fraction form
    1,271,306,287.64/1,905,930,355 = 397,457,851.34/x
  3. Step 3: Cross multiply
    1,271,306,287.64x = 1,905,930,355 × 397,457,851.34
  4. Step 4: Simplify right side
    1,271,306,287.64x = 757,526,983,701,983,360
  5. Step 5: Solve for x
    x = 757,526,983,701,983,360/1,271,306,287.64
  6. Step 6: Final answer
    x = 595,865,049.25

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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.