Home / 1,328,796,298.71-1,833,791,336.67-764,280,274.68

Finding the Fourth Proportional to 1,328,796,298.71, 1,833,791,336.67 and 764,280,274.68

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Solution

The fourth proportional to 1,328,796,298.71, 1,833,791,336.67 and 764,280,274.68 is: 1,054,736,943.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,796,298.71 : 1,833,791,336.67 = 764,280,274.68 : x
  2. Step 2: Convert to fraction form
    1,328,796,298.71/1,833,791,336.67 = 764,280,274.68/x
  3. Step 3: Cross multiply
    1,328,796,298.71x = 1,833,791,336.67 × 764,280,274.68
  4. Step 4: Simplify right side
    1,328,796,298.71x = 1,401,530,546,495,951,872
  5. Step 5: Solve for x
    x = 1,401,530,546,495,951,872/1,328,796,298.71
  6. Step 6: Final answer
    x = 1,054,736,943.39

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Double scale
Find fourth proportional to 1,328,796,299.71, 1,833,791,338.05 and 764,280,275.68
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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.