Home / 804,818,690.40-1,207,228,035.60-287,266,015.20

Finding the Fourth Proportional to 804,818,690.40, 1,207,228,035.60 and 287,266,015.20

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Solution

The fourth proportional to 804,818,690.40, 1,207,228,035.60 and 287,266,015.20 is: 430,899,022.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,818,690.40 : 1,207,228,035.60 = 287,266,015.20 : x
  2. Step 2: Convert to fraction form
    804,818,690.40/1,207,228,035.60 = 287,266,015.20/x
  3. Step 3: Cross multiply
    804,818,690.40x = 1,207,228,035.60 × 287,266,015.20
  4. Step 4: Simplify right side
    804,818,690.40x = 346,795,587,224,535,680
  5. Step 5: Solve for x
    x = 346,795,587,224,535,680/804,818,690.40
  6. Step 6: Final answer
    x = 430,899,022.80

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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.