Home / 71,088,021.20-106,632,031.80-65,545,288.40

Finding the Fourth Proportional to 71,088,021.20, 106,632,031.80 and 65,545,288.40

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Solution

The fourth proportional to 71,088,021.20, 106,632,031.80 and 65,545,288.40 is: 98,317,932.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,088,021.20 : 106,632,031.80 = 65,545,288.40 : x
  2. Step 2: Convert to fraction form
    71,088,021.20/106,632,031.80 = 65,545,288.40/x
  3. Step 3: Cross multiply
    71,088,021.20x = 106,632,031.80 × 65,545,288.40
  4. Step 4: Simplify right side
    71,088,021.20x = 6,989,227,277,008,971
  5. Step 5: Solve for x
    x = 6,989,227,277,008,971/71,088,021.20
  6. Step 6: Final answer
    x = 98,317,932.60

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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.