Home / 86,185,089.62-129,276,782.42-39,485,328.84

Finding the Fourth Proportional to 86,185,089.62, 129,276,782.42 and 39,485,328.84

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Solution

The fourth proportional to 86,185,089.62, 129,276,782.42 and 39,485,328.84 is: 59,227,602.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,185,089.62 : 129,276,782.42 = 39,485,328.84 : x
  2. Step 2: Convert to fraction form
    86,185,089.62/129,276,782.42 = 39,485,328.84/x
  3. Step 3: Cross multiply
    86,185,089.62x = 129,276,782.42 × 39,485,328.84
  4. Step 4: Simplify right side
    86,185,089.62x = 5,104,536,265,033,405
  5. Step 5: Solve for x
    x = 5,104,536,265,033,405/86,185,089.62
  6. Step 6: Final answer
    x = 59,227,602.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.