Home / 12,528,215,576.64-17,289,265,164.78-6,812,834,273.71

Finding the Fourth Proportional to 12,528,215,576.64, 17,289,265,164.78 and 6,812,834,273.71

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Solution

The fourth proportional to 12,528,215,576.64, 17,289,265,164.78 and 6,812,834,273.71 is: 9,401,889,483.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,528,215,576.64 : 17,289,265,164.78 = 6,812,834,273.71 : x
  2. Step 2: Convert to fraction form
    12,528,215,576.64/17,289,265,164.78 = 6,812,834,273.71/x
  3. Step 3: Cross multiply
    12,528,215,576.64x = 17,289,265,164.78 × 6,812,834,273.71
  4. Step 4: Simplify right side
    12,528,215,576.64x = 117,788,898,281,850,781,696
  5. Step 5: Solve for x
    x = 117,788,898,281,850,781,696/12,528,215,576.64
  6. Step 6: Final answer
    x = 9,401,889,483.88

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Double scale
Find fourth proportional to 12,528,215,577.64, 17,289,265,166.16 and 6,812,834,274.71
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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.