Home / 804,818,689.40-1,207,228,034.10-287,266,014.20

Finding the Fourth Proportional to 804,818,689.40, 1,207,228,034.10 and 287,266,014.20

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Solution

The fourth proportional to 804,818,689.40, 1,207,228,034.10 and 287,266,014.20 is: 430,899,021.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,818,689.40 : 1,207,228,034.10 = 287,266,014.20 : x
  2. Step 2: Convert to fraction form
    804,818,689.40/1,207,228,034.10 = 287,266,014.20/x
  3. Step 3: Cross multiply
    804,818,689.40x = 1,207,228,034.10 × 287,266,014.20
  4. Step 4: Simplify right side
    804,818,689.40x = 346,795,585,586,408,640
  5. Step 5: Solve for x
    x = 346,795,585,586,408,640/804,818,689.40
  6. Step 6: Final answer
    x = 430,899,021.30

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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.