Home / 525,885,487.60-788,828,231.40-321,812,143.60

Finding the Fourth Proportional to 525,885,487.60, 788,828,231.40 and 321,812,143.60

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Solution

The fourth proportional to 525,885,487.60, 788,828,231.40 and 321,812,143.60 is: 482,718,215.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,885,487.60 : 788,828,231.40 = 321,812,143.60 : x
  2. Step 2: Convert to fraction form
    525,885,487.60/788,828,231.40 = 321,812,143.60/x
  3. Step 3: Cross multiply
    525,885,487.60x = 788,828,231.40 × 321,812,143.60
  4. Step 4: Simplify right side
    525,885,487.60x = 253,854,504,079,030,848
  5. Step 5: Solve for x
    x = 253,854,504,079,030,848/525,885,487.60
  6. Step 6: Final answer
    x = 482,718,215.40

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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.