Home / 1,271,306,261.70-1,905,930,315.78-397,457,825.40

Finding the Fourth Proportional to 1,271,306,261.70, 1,905,930,315.78 and 397,457,825.40

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Solution

The fourth proportional to 1,271,306,261.70, 1,905,930,315.78 and 397,457,825.40 is: 595,865,010.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271,306,261.70 : 1,905,930,315.78 = 397,457,825.40 : x
  2. Step 2: Convert to fraction form
    1,271,306,261.70/1,905,930,315.78 = 397,457,825.40/x
  3. Step 3: Cross multiply
    1,271,306,261.70x = 1,905,930,315.78 × 397,457,825.40
  4. Step 4: Simplify right side
    1,271,306,261.70x = 757,526,918,673,854,080
  5. Step 5: Solve for x
    x = 757,526,918,673,854,080/1,271,306,261.70
  6. Step 6: Final answer
    x = 595,865,010.26

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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.