Home / 979,808,800.80-1,469,713,201.20-435,613,216.80

Finding the Fourth Proportional to 979,808,800.80, 1,469,713,201.20 and 435,613,216.80

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Solution

The fourth proportional to 979,808,800.80, 1,469,713,201.20 and 435,613,216.80 is: 653,419,825.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,808,800.80 : 1,469,713,201.20 = 435,613,216.80 : x
  2. Step 2: Convert to fraction form
    979,808,800.80/1,469,713,201.20 = 435,613,216.80/x
  3. Step 3: Cross multiply
    979,808,800.80x = 1,469,713,201.20 × 435,613,216.80
  4. Step 4: Simplify right side
    979,808,800.80x = 640,226,495,348,157,696
  5. Step 5: Solve for x
    x = 640,226,495,348,157,696/979,808,800.80
  6. Step 6: Final answer
    x = 653,419,825.20

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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.