Home / 78,066,899.26-107,732,953.86-43,260,170.96

Finding the Fourth Proportional to 78,066,899.26, 107,732,953.86 and 43,260,170.96

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Solution

The fourth proportional to 78,066,899.26, 107,732,953.86 and 43,260,170.96 is: 59,699,386.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,066,899.26 : 107,732,953.86 = 43,260,170.96 : x
  2. Step 2: Convert to fraction form
    78,066,899.26/107,732,953.86 = 43,260,170.96/x
  3. Step 3: Cross multiply
    78,066,899.26x = 107,732,953.86 × 43,260,170.96
  4. Step 4: Simplify right side
    78,066,899.26x = 4,660,546,002,009,392
  5. Step 5: Solve for x
    x = 4,660,546,002,009,392/78,066,899.26
  6. Step 6: Final answer
    x = 59,699,386.63

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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.