Home / 66,408,976.40-91,609,535.40-54,032,908.64

Finding the Fourth Proportional to 66,408,976.40, 91,609,535.40 and 54,032,908.64

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Solution

The fourth proportional to 66,408,976.40, 91,609,535.40 and 54,032,908.64 is: 74,537,056.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,408,976.40 : 91,609,535.40 = 54,032,908.64 : x
  2. Step 2: Convert to fraction form
    66,408,976.40/91,609,535.40 = 54,032,908.64/x
  3. Step 3: Cross multiply
    66,408,976.40x = 91,609,535.40 × 54,032,908.64
  4. Step 4: Simplify right side
    66,408,976.40x = 4,949,929,656,821,046
  5. Step 5: Solve for x
    x = 4,949,929,656,821,046/66,408,976.40
  6. Step 6: Final answer
    x = 74,537,056.96

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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.