Home / 186,399,804.20-279,667,885.64-86,736,978.54

Finding the Fourth Proportional to 186,399,804.20, 279,667,885.64 and 86,736,978.54

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Solution

The fourth proportional to 186,399,804.20, 279,667,885.64 and 86,736,978.54 is: 130,137,193.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,399,804.20 : 279,667,885.64 = 86,736,978.54 : x
  2. Step 2: Convert to fraction form
    186,399,804.20/279,667,885.64 = 86,736,978.54/x
  3. Step 3: Cross multiply
    186,399,804.20x = 279,667,885.64 × 86,736,978.54
  4. Step 4: Simplify right side
    186,399,804.20x = 24,257,547,394,650,172
  5. Step 5: Solve for x
    x = 24,257,547,394,650,172/186,399,804.20
  6. Step 6: Final answer
    x = 130,137,193.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.