Home / 681,252,140.84-940,128,332.57-367,986,357.89

Finding the Fourth Proportional to 681,252,140.84, 940,128,332.57 and 367,986,357.89

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Solution

The fourth proportional to 681,252,140.84, 940,128,332.57 and 367,986,357.89 is: 507,821,378.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,252,140.84 : 940,128,332.57 = 367,986,357.89 : x
  2. Step 2: Convert to fraction form
    681,252,140.84/940,128,332.57 = 367,986,357.89/x
  3. Step 3: Cross multiply
    681,252,140.84x = 940,128,332.57 × 367,986,357.89
  4. Step 4: Simplify right side
    681,252,140.84x = 345,954,401,045,092,416
  5. Step 5: Solve for x
    x = 345,954,401,045,092,416/681,252,140.84
  6. Step 6: Final answer
    x = 507,821,378.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.