Home / 806,356,561.36-1,209,711,242.04-261,153,207.76

Finding the Fourth Proportional to 806,356,561.36, 1,209,711,242.04 and 261,153,207.76

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Solution

The fourth proportional to 806,356,561.36, 1,209,711,242.04 and 261,153,207.76 is: 391,786,941.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,356,561.36 : 1,209,711,242.04 = 261,153,207.76 : x
  2. Step 2: Convert to fraction form
    806,356,561.36/1,209,711,242.04 = 261,153,207.76/x
  3. Step 3: Cross multiply
    806,356,561.36x = 1,209,711,242.04 × 261,153,207.76
  4. Step 4: Simplify right side
    806,356,561.36x = 315,919,971,322,079,744
  5. Step 5: Solve for x
    x = 315,919,971,322,079,744/806,356,561.36
  6. Step 6: Final answer
    x = 391,786,941.98

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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.