Home / 312,053,560.05-430,426,511.02-200,685,282.32

Finding the Fourth Proportional to 312,053,560.05, 430,426,511.02 and 200,685,282.32

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Solution

The fourth proportional to 312,053,560.05, 430,426,511.02 and 200,685,282.32 is: 276,812,307.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,053,560.05 : 430,426,511.02 = 200,685,282.32 : x
  2. Step 2: Convert to fraction form
    312,053,560.05/430,426,511.02 = 200,685,282.32/x
  3. Step 3: Cross multiply
    312,053,560.05x = 430,426,511.02 × 200,685,282.32
  4. Step 4: Simplify right side
    312,053,560.05x = 86,380,265,880,216,640
  5. Step 5: Solve for x
    x = 86,380,265,880,216,640/312,053,560.05
  6. Step 6: Final answer
    x = 276,812,307.05

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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.