Home / 78,002,825.87-107,643,802.59-43,195,474.28

Finding the Fourth Proportional to 78,002,825.87, 107,643,802.59 and 43,195,474.28

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Solution

The fourth proportional to 78,002,825.87, 107,643,802.59 and 43,195,474.28 is: 59,609,700.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,002,825.87 : 107,643,802.59 = 43,195,474.28 : x
  2. Step 2: Convert to fraction form
    78,002,825.87/107,643,802.59 = 43,195,474.28/x
  3. Step 3: Cross multiply
    78,002,825.87x = 107,643,802.59 × 43,195,474.28
  4. Step 4: Simplify right side
    78,002,825.87x = 4,649,725,106,446,852
  5. Step 5: Solve for x
    x = 4,649,725,106,446,852/78,002,825.87
  6. Step 6: Final answer
    x = 59,609,700.73

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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.