Home / 398,929,623,931.32-598,270,675,263.58-143,925,857,392.62

Finding the Fourth Proportional to 398,929,623,931.32, 598,270,675,263.58 and 143,925,857,392.62

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Solution

The fourth proportional to 398,929,623,931.32, 598,270,675,263.58 and 143,925,857,392.62 is: 215,844,135,719.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,929,623,931.32 : 598,270,675,263.58 = 143,925,857,392.62 : x
  2. Step 2: Convert to fraction form
    398,929,623,931.32/598,270,675,263.58 = 143,925,857,392.62/x
  3. Step 3: Cross multiply
    398,929,623,931.32x = 598,270,675,263.58 × 143,925,857,392.62
  4. Step 4: Simplify right side
    398,929,623,931.32x = 86,106,619,890,172,470,231,040
  5. Step 5: Solve for x
    x = 86,106,619,890,172,470,231,040/398,929,623,931.32
  6. Step 6: Final answer
    x = 215,844,135,719.03

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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.