Home / 66,143,702.72-91,283,421.72-39,683,052.32

Finding the Fourth Proportional to 66,143,702.72, 91,283,421.72 and 39,683,052.32

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Solution

The fourth proportional to 66,143,702.72, 91,283,421.72 and 39,683,052.32 is: 54,765,679.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,143,702.72 : 91,283,421.72 = 39,683,052.32 : x
  2. Step 2: Convert to fraction form
    66,143,702.72/91,283,421.72 = 39,683,052.32/x
  3. Step 3: Cross multiply
    66,143,702.72x = 91,283,421.72 × 39,683,052.32
  4. Step 4: Simplify right side
    66,143,702.72x = 3,622,404,800,063,384.50
  5. Step 5: Solve for x
    x = 3,622,404,800,063,384.50/66,143,702.72
  6. Step 6: Final answer
    x = 54,765,679.14

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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.