Home / 155,270,630.40-232,873,286.40-78,521,510.40

Finding the Fourth Proportional to 155,270,630.40, 232,873,286.40 and 78,521,510.40

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Solution

The fourth proportional to 155,270,630.40, 232,873,286.40 and 78,521,510.40 is: 117,765,749.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,270,630.40 : 232,873,286.40 = 78,521,510.40 : x
  2. Step 2: Convert to fraction form
    155,270,630.40/232,873,286.40 = 78,521,510.40/x
  3. Step 3: Cross multiply
    155,270,630.40x = 232,873,286.40 × 78,521,510.40
  4. Step 4: Simplify right side
    155,270,630.40x = 18,285,562,179,939,780
  5. Step 5: Solve for x
    x = 18,285,562,179,939,780/155,270,630.40
  6. Step 6: Final answer
    x = 117,765,749.60

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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.