Home / 1,192,105,406.31-1,788,021,896.91-318,774,878.94

Finding the Fourth Proportional to 1,192,105,406.31, 1,788,021,896.91 and 318,774,878.94

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Solution

The fourth proportional to 1,192,105,406.31, 1,788,021,896.91 and 318,774,878.94 is: 478,125,894.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192,105,406.31 : 1,788,021,896.91 = 318,774,878.94 : x
  2. Step 2: Convert to fraction form
    1,192,105,406.31/1,788,021,896.91 = 318,774,878.94/x
  3. Step 3: Cross multiply
    1,192,105,406.31x = 1,788,021,896.91 × 318,774,878.94
  4. Step 4: Simplify right side
    1,192,105,406.31x = 569,976,463,729,554,432
  5. Step 5: Solve for x
    x = 569,976,463,729,554,432/1,192,105,406.31
  6. Step 6: Final answer
    x = 478,125,894.50

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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.