Home / 804,818,672.40-1,207,228,008.60-287,265,997.20

Finding the Fourth Proportional to 804,818,672.40, 1,207,228,008.60 and 287,265,997.20

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Solution

The fourth proportional to 804,818,672.40, 1,207,228,008.60 and 287,265,997.20 is: 430,898,995.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,818,672.40 : 1,207,228,008.60 = 287,265,997.20 : x
  2. Step 2: Convert to fraction form
    804,818,672.40/1,207,228,008.60 = 287,265,997.20/x
  3. Step 3: Cross multiply
    804,818,672.40x = 1,207,228,008.60 × 287,265,997.20
  4. Step 4: Simplify right side
    804,818,672.40x = 346,795,557,738,249,152
  5. Step 5: Solve for x
    x = 346,795,557,738,249,152/804,818,672.40
  6. Step 6: Final answer
    x = 430,898,995.80

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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.