Home / 80,032,955.88-120,051,883.26-55,416,783.72

Finding the Fourth Proportional to 80,032,955.88, 120,051,883.26 and 55,416,783.72

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Solution

The fourth proportional to 80,032,955.88, 120,051,883.26 and 55,416,783.72 is: 83,126,871.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,032,955.88 : 120,051,883.26 = 55,416,783.72 : x
  2. Step 2: Convert to fraction form
    80,032,955.88/120,051,883.26 = 55,416,783.72/x
  3. Step 3: Cross multiply
    80,032,955.88x = 120,051,883.26 × 55,416,783.72
  4. Step 4: Simplify right side
    80,032,955.88x = 6,652,889,249,798,109
  5. Step 5: Solve for x
    x = 6,652,889,249,798,109/80,032,955.88
  6. Step 6: Final answer
    x = 83,126,871.63

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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.