Home / 689,496,015.80-1,034,244,023.70-431,506,998.20

Finding the Fourth Proportional to 689,496,015.80, 1,034,244,023.70 and 431,506,998.20

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Solution

The fourth proportional to 689,496,015.80, 1,034,244,023.70 and 431,506,998.20 is: 647,260,497.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,496,015.80 : 1,034,244,023.70 = 431,506,998.20 : x
  2. Step 2: Convert to fraction form
    689,496,015.80/1,034,244,023.70 = 431,506,998.20/x
  3. Step 3: Cross multiply
    689,496,015.80x = 1,034,244,023.70 × 431,506,998.20
  4. Step 4: Simplify right side
    689,496,015.80x = 446,283,534,073,076,672
  5. Step 5: Solve for x
    x = 446,283,534,073,076,672/689,496,015.80
  6. Step 6: Final answer
    x = 647,260,497.30

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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.