Home / 725,795,615.20-1,088,693,422.80-435,557,970.40

Finding the Fourth Proportional to 725,795,615.20, 1,088,693,422.80 and 435,557,970.40

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Solution

The fourth proportional to 725,795,615.20, 1,088,693,422.80 and 435,557,970.40 is: 653,336,955.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,795,615.20 : 1,088,693,422.80 = 435,557,970.40 : x
  2. Step 2: Convert to fraction form
    725,795,615.20/1,088,693,422.80 = 435,557,970.40/x
  3. Step 3: Cross multiply
    725,795,615.20x = 1,088,693,422.80 × 435,557,970.40
  4. Step 4: Simplify right side
    725,795,615.20x = 474,189,097,622,597,056
  5. Step 5: Solve for x
    x = 474,189,097,622,597,056/725,795,615.20
  6. Step 6: Final answer
    x = 653,336,955.60

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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.