Home / 278,689,579.92-384,602,701.87-153,252,059.86

Finding the Fourth Proportional to 278,689,579.92, 384,602,701.87 and 153,252,059.86

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Solution

The fourth proportional to 278,689,579.92, 384,602,701.87 and 153,252,059.86 is: 211,493,936.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,689,579.92 : 384,602,701.87 = 153,252,059.86 : x
  2. Step 2: Convert to fraction form
    278,689,579.92/384,602,701.87 = 153,252,059.86/x
  3. Step 3: Cross multiply
    278,689,579.92x = 384,602,701.87 × 153,252,059.86
  4. Step 4: Simplify right side
    278,689,579.92x = 58,941,156,289,298,984
  5. Step 5: Solve for x
    x = 58,941,156,289,298,984/278,689,579.92
  6. Step 6: Final answer
    x = 211,493,936.39

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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.