Home / 848,007,489.88-1,272,011,699.55-387,622,808.78

Finding the Fourth Proportional to 848,007,489.88, 1,272,011,699.55 and 387,622,808.78

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Solution

The fourth proportional to 848,007,489.88, 1,272,011,699.55 and 387,622,808.78 is: 581,434,425.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    848,007,489.88 : 1,272,011,699.55 = 387,622,808.78 : x
  2. Step 2: Convert to fraction form
    848,007,489.88/1,272,011,699.55 = 387,622,808.78/x
  3. Step 3: Cross multiply
    848,007,489.88x = 1,272,011,699.55 × 387,622,808.78
  4. Step 4: Simplify right side
    848,007,489.88x = 493,060,747,780,592,384
  5. Step 5: Solve for x
    x = 493,060,747,780,592,384/848,007,489.88
  6. Step 6: Final answer
    x = 581,434,425.60

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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.