Home / 843,918,403.80-1,265,877,605.70-828,801,859.80

Finding the Fourth Proportional to 843,918,403.80, 1,265,877,605.70 and 828,801,859.80

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Solution

The fourth proportional to 843,918,403.80, 1,265,877,605.70 and 828,801,859.80 is: 1,243,202,789.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,918,403.80 : 1,265,877,605.70 = 828,801,859.80 : x
  2. Step 2: Convert to fraction form
    843,918,403.80/1,265,877,605.70 = 828,801,859.80/x
  3. Step 3: Cross multiply
    843,918,403.80x = 1,265,877,605.70 × 828,801,859.80
  4. Step 4: Simplify right side
    843,918,403.80x = 1,049,161,713,883,331,072
  5. Step 5: Solve for x
    x = 1,049,161,713,883,331,072/843,918,403.80
  6. Step 6: Final answer
    x = 1,243,202,789.70

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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.