Home / 136,008,534.36-187,621,064.82-86,363,969.88

Finding the Fourth Proportional to 136,008,534.36, 187,621,064.82 and 86,363,969.88

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Solution

The fourth proportional to 136,008,534.36, 187,621,064.82 and 86,363,969.88 is: 119,137,376.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,008,534.36 : 187,621,064.82 = 86,363,969.88 : x
  2. Step 2: Convert to fraction form
    136,008,534.36/187,621,064.82 = 86,363,969.88/x
  3. Step 3: Cross multiply
    136,008,534.36x = 187,621,064.82 × 86,363,969.88
  4. Step 4: Simplify right side
    136,008,534.36x = 16,203,699,990,968,006
  5. Step 5: Solve for x
    x = 16,203,699,990,968,006/136,008,534.36
  6. Step 6: Final answer
    x = 119,137,376.69

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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.