Home / 525,889,246.40-787,322,215.20-321,815,902.40

Finding the Fourth Proportional to 525,889,246.40, 787,322,215.20 and 321,815,902.40

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Solution

The fourth proportional to 525,889,246.40, 787,322,215.20 and 321,815,902.40 is: 481,798,802.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,889,246.40 : 787,322,215.20 = 321,815,902.40 : x
  2. Step 2: Convert to fraction form
    525,889,246.40/787,322,215.20 = 321,815,902.40/x
  3. Step 3: Cross multiply
    525,889,246.40x = 787,322,215.20 × 321,815,902.40
  4. Step 4: Simplify right side
    525,889,246.40x = 253,372,809,164,155,008
  5. Step 5: Solve for x
    x = 253,372,809,164,155,008/525,889,246.40
  6. Step 6: Final answer
    x = 481,798,802.50

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1.5x scale

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.