Home / 158,179,981.68-218,290,628.18-91,197,614.72

Finding the Fourth Proportional to 158,179,981.68, 218,290,628.18 and 91,197,614.72

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Solution

The fourth proportional to 158,179,981.68, 218,290,628.18 and 91,197,614.72 is: 125,854,007.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,179,981.68 : 218,290,628.18 = 91,197,614.72 : x
  2. Step 2: Convert to fraction form
    158,179,981.68/218,290,628.18 = 91,197,614.72/x
  3. Step 3: Cross multiply
    158,179,981.68x = 218,290,628.18 × 91,197,614.72
  4. Step 4: Simplify right side
    158,179,981.68x = 19,907,584,605,746,416
  5. Step 5: Solve for x
    x = 19,907,584,605,746,416/158,179,981.68
  6. Step 6: Final answer
    x = 125,854,007.53

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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.