Home / 496,686,964.78-685,443,541.30-285,032,516.50

Finding the Fourth Proportional to 496,686,964.78, 685,443,541.30 and 285,032,516.50

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Solution

The fourth proportional to 496,686,964.78, 685,443,541.30 and 285,032,516.50 is: 393,353,784.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,686,964.78 : 685,443,541.30 = 285,032,516.50 : x
  2. Step 2: Convert to fraction form
    496,686,964.78/685,443,541.30 = 285,032,516.50/x
  3. Step 3: Cross multiply
    496,686,964.78x = 685,443,541.30 × 285,032,516.50
  4. Step 4: Simplify right side
    496,686,964.78x = 195,373,697,495,410,656
  5. Step 5: Solve for x
    x = 195,373,697,495,410,656/496,686,964.78
  6. Step 6: Final answer
    x = 393,353,784.88

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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.