Home / 814,016,887.40-1,219,233,740.70-490,336,221.80

Finding the Fourth Proportional to 814,016,887.40, 1,219,233,740.70 and 490,336,221.80

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Solution

The fourth proportional to 814,016,887.40, 1,219,233,740.70 and 490,336,221.80 is: 734,425,139.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,016,887.40 : 1,219,233,740.70 = 490,336,221.80 : x
  2. Step 2: Convert to fraction form
    814,016,887.40/1,219,233,740.70 = 490,336,221.80/x
  3. Step 3: Cross multiply
    814,016,887.40x = 1,219,233,740.70 × 490,336,221.80
  4. Step 4: Simplify right side
    814,016,887.40x = 597,834,465,905,918,976
  5. Step 5: Solve for x
    x = 597,834,465,905,918,976/814,016,887.40
  6. Step 6: Final answer
    x = 734,425,139.28

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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.