Home / 122,585,940.80-183,878,911.20-54,356,206.40

Finding the Fourth Proportional to 122,585,940.80, 183,878,911.20 and 54,356,206.40

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Solution

The fourth proportional to 122,585,940.80, 183,878,911.20 and 54,356,206.40 is: 81,534,309.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,585,940.80 : 183,878,911.20 = 54,356,206.40 : x
  2. Step 2: Convert to fraction form
    122,585,940.80/183,878,911.20 = 54,356,206.40/x
  3. Step 3: Cross multiply
    122,585,940.80x = 183,878,911.20 × 54,356,206.40
  4. Step 4: Simplify right side
    122,585,940.80x = 9,994,960,049,794,470
  5. Step 5: Solve for x
    x = 9,994,960,049,794,470/122,585,940.80
  6. Step 6: Final answer
    x = 81,534,309.60

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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.