Home / 537,842,355.45-742,223,987.78-311,825,263.07

Finding the Fourth Proportional to 537,842,355.45, 742,223,987.78 and 311,825,263.07

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Solution

The fourth proportional to 537,842,355.45, 742,223,987.78 and 311,825,263.07 is: 430,319,754.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,842,355.45 : 742,223,987.78 = 311,825,263.07 : x
  2. Step 2: Convert to fraction form
    537,842,355.45/742,223,987.78 = 311,825,263.07/x
  3. Step 3: Cross multiply
    537,842,355.45x = 742,223,987.78 × 311,825,263.07
  4. Step 4: Simplify right side
    537,842,355.45x = 231,444,190,246,659,392
  5. Step 5: Solve for x
    x = 231,444,190,246,659,392/537,842,355.45
  6. Step 6: Final answer
    x = 430,319,754.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.