Home / 103,581,115,643.82-142,940,430,765.80-57,856,041,703.75

Finding the Fourth Proportional to 103,581,115,643.82, 142,940,430,765.80 and 57,856,041,703.75

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Solution

The fourth proportional to 103,581,115,643.82, 142,940,430,765.80 and 57,856,041,703.75 is: 79,840,494,786.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,581,115,643.82 : 142,940,430,765.80 = 57,856,041,703.75 : x
  2. Step 2: Convert to fraction form
    103,581,115,643.82/142,940,430,765.80 = 57,856,041,703.75/x
  3. Step 3: Cross multiply
    103,581,115,643.82x = 142,940,430,765.80 × 57,856,041,703.75
  4. Step 4: Simplify right side
    103,581,115,643.82x = 8,269,967,523,537,399,840,768
  5. Step 5: Solve for x
    x = 8,269,967,523,537,399,840,768/103,581,115,643.82
  6. Step 6: Final answer
    x = 79,840,494,786.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.