Home / 21,021,857.40-31,532,786.10-5,669,117.40

Finding the Fourth Proportional to 21,021,857.40, 31,532,786.10 and 5,669,117.40

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Solution

The fourth proportional to 21,021,857.40, 31,532,786.10 and 5,669,117.40 is: 8,503,676.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,021,857.40 : 31,532,786.10 = 5,669,117.40 : x
  2. Step 2: Convert to fraction form
    21,021,857.40/31,532,786.10 = 5,669,117.40/x
  3. Step 3: Cross multiply
    21,021,857.40x = 31,532,786.10 × 5,669,117.40
  4. Step 4: Simplify right side
    21,021,857.40x = 178,763,066,349,988.16
  5. Step 5: Solve for x
    x = 178,763,066,349,988.16/21,021,857.40
  6. Step 6: Final answer
    x = 8,503,676.10

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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.