Home / 1,012,878,426.75-1,521,056,339.47-621,702,279.36

Finding the Fourth Proportional to 1,012,878,426.75, 1,521,056,339.47 and 621,702,279.36

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Solution

The fourth proportional to 1,012,878,426.75, 1,521,056,339.47 and 621,702,279.36 is: 933,620,628.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,012,878,426.75 : 1,521,056,339.47 = 621,702,279.36 : x
  2. Step 2: Convert to fraction form
    1,012,878,426.75/1,521,056,339.47 = 621,702,279.36/x
  3. Step 3: Cross multiply
    1,012,878,426.75x = 1,521,056,339.47 × 621,702,279.36
  4. Step 4: Simplify right side
    1,012,878,426.75x = 945,644,193,283,476,992
  5. Step 5: Solve for x
    x = 945,644,193,283,476,992/1,012,878,426.75
  6. Step 6: Final answer
    x = 933,620,628.41

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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.