Home / 1,192,105,405.56-1,788,021,895.79-318,774,878.19

Finding the Fourth Proportional to 1,192,105,405.56, 1,788,021,895.79 and 318,774,878.19

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Solution

The fourth proportional to 1,192,105,405.56, 1,788,021,895.79 and 318,774,878.19 is: 478,125,893.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192,105,405.56 : 1,788,021,895.79 = 318,774,878.19 : x
  2. Step 2: Convert to fraction form
    1,192,105,405.56/1,788,021,895.79 = 318,774,878.19/x
  3. Step 3: Cross multiply
    1,192,105,405.56x = 1,788,021,895.79 × 318,774,878.19
  4. Step 4: Simplify right side
    1,192,105,405.56x = 569,976,462,029,916,288
  5. Step 5: Solve for x
    x = 569,976,462,029,916,288/1,192,105,405.56
  6. Step 6: Final answer
    x = 478,125,893.37

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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.