Home / 86,395,018.37-129,532,024.19-31,800,521.84

Finding the Fourth Proportional to 86,395,018.37, 129,532,024.19 and 31,800,521.84

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Solution

The fourth proportional to 86,395,018.37, 129,532,024.19 and 31,800,521.84 is: 47,678,512.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,395,018.37 : 129,532,024.19 = 31,800,521.84 : x
  2. Step 2: Convert to fraction form
    86,395,018.37/129,532,024.19 = 31,800,521.84/x
  3. Step 3: Cross multiply
    86,395,018.37x = 129,532,024.19 × 31,800,521.84
  4. Step 4: Simplify right side
    86,395,018.37x = 4,119,185,963,665,344.50
  5. Step 5: Solve for x
    x = 4,119,185,963,665,344.50/86,395,018.37
  6. Step 6: Final answer
    x = 47,678,512.51

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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.