Home / 976,585,130.40-1,464,585,512.40-321,415,217.76

Finding the Fourth Proportional to 976,585,130.40, 1,464,585,512.40 and 321,415,217.76

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Solution

The fourth proportional to 976,585,130.40, 1,464,585,512.40 and 321,415,217.76 is: 482,026,662.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,585,130.40 : 1,464,585,512.40 = 321,415,217.76 : x
  2. Step 2: Convert to fraction form
    976,585,130.40/1,464,585,512.40 = 321,415,217.76/x
  3. Step 3: Cross multiply
    976,585,130.40x = 1,464,585,512.40 × 321,415,217.76
  4. Step 4: Simplify right side
    976,585,130.40x = 470,740,071,396,187,200
  5. Step 5: Solve for x
    x = 470,740,071,396,187,200/976,585,130.40
  6. Step 6: Final answer
    x = 482,026,662.85

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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.