Home / 78,257,572.98-107,993,395.80-43,449,368.46

Finding the Fourth Proportional to 78,257,572.98, 107,993,395.80 and 43,449,368.46

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Solution

The fourth proportional to 78,257,572.98, 107,993,395.80 and 43,449,368.46 is: 59,958,987.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,257,572.98 : 107,993,395.80 = 43,449,368.46 : x
  2. Step 2: Convert to fraction form
    78,257,572.98/107,993,395.80 = 43,449,368.46/x
  3. Step 3: Cross multiply
    78,257,572.98x = 107,993,395.80 × 43,449,368.46
  4. Step 4: Simplify right side
    78,257,572.98x = 4,692,244,845,360,816
  5. Step 5: Solve for x
    x = 4,692,244,845,360,816/78,257,572.98
  6. Step 6: Final answer
    x = 59,958,987.57

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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.