Home / 65,206,186.40-89,947,067.36-40,717,385.12

Finding the Fourth Proportional to 65,206,186.40, 89,947,067.36 and 40,717,385.12

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Solution

The fourth proportional to 65,206,186.40, 89,947,067.36 and 40,717,385.12 is: 56,166,593.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,206,186.40 : 89,947,067.36 = 40,717,385.12 : x
  2. Step 2: Convert to fraction form
    65,206,186.40/89,947,067.36 = 40,717,385.12/x
  3. Step 3: Cross multiply
    65,206,186.40x = 89,947,067.36 × 40,717,385.12
  4. Step 4: Simplify right side
    65,206,186.40x = 3,662,409,382,111,701.50
  5. Step 5: Solve for x
    x = 3,662,409,382,111,701.50/65,206,186.40
  6. Step 6: Final answer
    x = 56,166,593.76

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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.