Home / 525,885,140.40-787,316,056.20-321,811,796.40

Finding the Fourth Proportional to 525,885,140.40, 787,316,056.20 and 321,811,796.40

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Solution

The fourth proportional to 525,885,140.40, 787,316,056.20 and 321,811,796.40 is: 481,792,648.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,885,140.40 : 787,316,056.20 = 321,811,796.40 : x
  2. Step 2: Convert to fraction form
    525,885,140.40/787,316,056.20 = 321,811,796.40/x
  3. Step 3: Cross multiply
    525,885,140.40x = 787,316,056.20 × 321,811,796.40
  4. Step 4: Simplify right side
    525,885,140.40x = 253,367,594,380,285,344
  5. Step 5: Solve for x
    x = 253,367,594,380,285,344/525,885,140.40
  6. Step 6: Final answer
    x = 481,792,648.08

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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.