Home / 857,129,639.70-1,285,386,180.42-296,739,304.50

Finding the Fourth Proportional to 857,129,639.70, 1,285,386,180.42 and 296,739,304.50

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Solution

The fourth proportional to 857,129,639.70, 1,285,386,180.42 and 296,739,304.50 is: 445,002,230.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,129,639.70 : 1,285,386,180.42 = 296,739,304.50 : x
  2. Step 2: Convert to fraction form
    857,129,639.70/1,285,386,180.42 = 296,739,304.50/x
  3. Step 3: Cross multiply
    857,129,639.70x = 1,285,386,180.42 × 296,739,304.50
  4. Step 4: Simplify right side
    857,129,639.70x = 381,424,601,191,742,336
  5. Step 5: Solve for x
    x = 381,424,601,191,742,336/857,129,639.70
  6. Step 6: Final answer
    x = 445,002,230.15

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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.