Home / 21,335,219.37-31,989,869.01-8,365,831.46

Finding the Fourth Proportional to 21,335,219.37, 31,989,869.01 and 8,365,831.46

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Solution

The fourth proportional to 21,335,219.37, 31,989,869.01 and 8,365,831.46 is: 12,543,665.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,335,219.37 : 31,989,869.01 = 8,365,831.46 : x
  2. Step 2: Convert to fraction form
    21,335,219.37/31,989,869.01 = 8,365,831.46/x
  3. Step 3: Cross multiply
    21,335,219.37x = 31,989,869.01 × 8,365,831.46
  4. Step 4: Simplify right side
    21,335,219.37x = 267,621,852,565,137.06
  5. Step 5: Solve for x
    x = 267,621,852,565,137.06/21,335,219.37
  6. Step 6: Final answer
    x = 12,543,665.38

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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.