Home / 411,048,708.80-616,601,056.80-130,907,422.40

Finding the Fourth Proportional to 411,048,708.80, 616,601,056.80 and 130,907,422.40

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Solution

The fourth proportional to 411,048,708.80, 616,601,056.80 and 130,907,422.40 is: 196,370,048.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,048,708.80 : 616,601,056.80 = 130,907,422.40 : x
  2. Step 2: Convert to fraction form
    411,048,708.80/616,601,056.80 = 130,907,422.40/x
  3. Step 3: Cross multiply
    411,048,708.80x = 616,601,056.80 × 130,907,422.40
  4. Step 4: Simplify right side
    411,048,708.80x = 80,717,654,994,803,984
  5. Step 5: Solve for x
    x = 80,717,654,994,803,984/411,048,708.80
  6. Step 6: Final answer
    x = 196,370,048.77

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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.