Home / 99,455,969.60-149,183,954.40-72,582,113.60

Finding the Fourth Proportional to 99,455,969.60, 149,183,954.40 and 72,582,113.60

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Solution

The fourth proportional to 99,455,969.60, 149,183,954.40 and 72,582,113.60 is: 108,873,170.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,455,969.60 : 149,183,954.40 = 72,582,113.60 : x
  2. Step 2: Convert to fraction form
    99,455,969.60/149,183,954.40 = 72,582,113.60/x
  3. Step 3: Cross multiply
    99,455,969.60x = 149,183,954.40 × 72,582,113.60
  4. Step 4: Simplify right side
    99,455,969.60x = 10,828,086,725,558,020
  5. Step 5: Solve for x
    x = 10,828,086,725,558,020/99,455,969.60
  6. Step 6: Final answer
    x = 108,873,170.40

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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.