Home / 78,203,599.36-107,918,140.80-43,397,808.64

Finding the Fourth Proportional to 78,203,599.36, 107,918,140.80 and 43,397,808.64

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Solution

The fourth proportional to 78,203,599.36, 107,918,140.80 and 43,397,808.64 is: 59,887,407.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,203,599.36 : 107,918,140.80 = 43,397,808.64 : x
  2. Step 2: Convert to fraction form
    78,203,599.36/107,918,140.80 = 43,397,808.64/x
  3. Step 3: Cross multiply
    78,203,599.36x = 107,918,140.80 × 43,397,808.64
  4. Step 4: Simplify right side
    78,203,599.36x = 4,683,410,823,222,976
  5. Step 5: Solve for x
    x = 4,683,410,823,222,976/78,203,599.36
  6. Step 6: Final answer
    x = 59,887,407.50

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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.