Home / 160,376,643.40-221,320,555.88-87,037,869.64

Finding the Fourth Proportional to 160,376,643.40, 221,320,555.88 and 87,037,869.64

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Solution

The fourth proportional to 160,376,643.40, 221,320,555.88 and 87,037,869.64 is: 120,112,687.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,376,643.40 : 221,320,555.88 = 87,037,869.64 : x
  2. Step 2: Convert to fraction form
    160,376,643.40/221,320,555.88 = 87,037,869.64/x
  3. Step 3: Cross multiply
    160,376,643.40x = 221,320,555.88 × 87,037,869.64
  4. Step 4: Simplify right side
    160,376,643.40x = 19,263,269,691,335,776
  5. Step 5: Solve for x
    x = 19,263,269,691,335,776/160,376,643.40
  6. Step 6: Final answer
    x = 120,112,687.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.