Home / 21,005,087.36-31,504,831.20-5,857,750.40

Finding the Fourth Proportional to 21,005,087.36, 31,504,831.20 and 5,857,750.40

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Solution

The fourth proportional to 21,005,087.36, 31,504,831.20 and 5,857,750.40 is: 8,785,844.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,005,087.36 : 31,504,831.20 = 5,857,750.40 : x
  2. Step 2: Convert to fraction form
    21,005,087.36/31,504,831.20 = 5,857,750.40/x
  3. Step 3: Cross multiply
    21,005,087.36x = 31,504,831.20 × 5,857,750.40
  4. Step 4: Simplify right side
    21,005,087.36x = 184,547,437,563,732.50
  5. Step 5: Solve for x
    x = 184,547,437,563,732.50/21,005,087.36
  6. Step 6: Final answer
    x = 8,785,844.80

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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.