Home / 143,426,109,133.39-197,856,541,440.52-85,513,645,460.69

Finding the Fourth Proportional to 143,426,109,133.39, 197,856,541,440.52 and 85,513,645,460.69

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Solution

The fourth proportional to 143,426,109,133.39, 197,856,541,440.52 and 85,513,645,460.69 is: 117,966,207,401.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,426,109,133.39 : 197,856,541,440.52 = 85,513,645,460.69 : x
  2. Step 2: Convert to fraction form
    143,426,109,133.39/197,856,541,440.52 = 85,513,645,460.69/x
  3. Step 3: Cross multiply
    143,426,109,133.39x = 197,856,541,440.52 × 85,513,645,460.69
  4. Step 4: Simplify right side
    143,426,109,133.39x = 16,919,434,136,821,954,510,848
  5. Step 5: Solve for x
    x = 16,919,434,136,821,954,510,848/143,426,109,133.39
  6. Step 6: Final answer
    x = 117,966,207,401.52

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Double scale
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1.5x scale

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.