Home / 72,674,892.20-109,071,824.70-72,108,021.80

Finding the Fourth Proportional to 72,674,892.20, 109,071,824.70 and 72,108,021.80

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Solution

The fourth proportional to 72,674,892.20, 109,071,824.70 and 72,108,021.80 is: 108,221,055.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,674,892.20 : 109,071,824.70 = 72,108,021.80 : x
  2. Step 2: Convert to fraction form
    72,674,892.20/109,071,824.70 = 72,108,021.80/x
  3. Step 3: Cross multiply
    72,674,892.20x = 109,071,824.70 × 72,108,021.80
  4. Step 4: Simplify right side
    72,674,892.20x = 7,864,953,513,233,378
  5. Step 5: Solve for x
    x = 7,864,953,513,233,378/72,674,892.20
  6. Step 6: Final answer
    x = 108,221,055.10

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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.