Home / 86,652,086.40-129,946,636.80-29,146,233.60

Finding the Fourth Proportional to 86,652,086.40, 129,946,636.80 and 29,146,233.60

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Solution

The fourth proportional to 86,652,086.40, 129,946,636.80 and 29,146,233.60 is: 43,708,757.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,652,086.40 : 129,946,636.80 = 29,146,233.60 : x
  2. Step 2: Convert to fraction form
    86,652,086.40/129,946,636.80 = 29,146,233.60/x
  3. Step 3: Cross multiply
    86,652,086.40x = 129,946,636.80 × 29,146,233.60
  4. Step 4: Simplify right side
    86,652,086.40x = 3,787,455,031,707,156.50
  5. Step 5: Solve for x
    x = 3,787,455,031,707,156.50/86,652,086.40
  6. Step 6: Final answer
    x = 43,708,757.50

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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.