Home / 1,418,409,921.30-2,125,823,291.55-689,829,825.30

Finding the Fourth Proportional to 1,418,409,921.30, 2,125,823,291.55 and 689,829,825.30

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Solution

The fourth proportional to 1,418,409,921.30, 2,125,823,291.55 and 689,829,825.30 is: 1,033,873,415.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418,409,921.30 : 2,125,823,291.55 = 689,829,825.30 : x
  2. Step 2: Convert to fraction form
    1,418,409,921.30/2,125,823,291.55 = 689,829,825.30/x
  3. Step 3: Cross multiply
    1,418,409,921.30x = 2,125,823,291.55 × 689,829,825.30
  4. Step 4: Simplify right side
    1,418,409,921.30x = 1,466,456,309,828,607,232
  5. Step 5: Solve for x
    x = 1,466,456,309,828,607,232/1,418,409,921.30
  6. Step 6: Final answer
    x = 1,033,873,415.44

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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.