Home / 136,880,378.12-205,346,462.70-55,005,629.96

Finding the Fourth Proportional to 136,880,378.12, 205,346,462.70 and 55,005,629.96

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Solution

The fourth proportional to 136,880,378.12, 205,346,462.70 and 55,005,629.96 is: 82,518,851.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,880,378.12 : 205,346,462.70 = 55,005,629.96 : x
  2. Step 2: Convert to fraction form
    136,880,378.12/205,346,462.70 = 55,005,629.96/x
  3. Step 3: Cross multiply
    136,880,378.12x = 205,346,462.70 × 55,005,629.96
  4. Step 4: Simplify right side
    136,880,378.12x = 11,295,211,540,871,142
  5. Step 5: Solve for x
    x = 11,295,211,540,871,142/136,880,378.12
  6. Step 6: Final answer
    x = 82,518,851.10

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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.