Home / 78,528,008.40-117,792,012.60-44,515,784.40

Finding the Fourth Proportional to 78,528,008.40, 117,792,012.60 and 44,515,784.40

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Solution

The fourth proportional to 78,528,008.40, 117,792,012.60 and 44,515,784.40 is: 66,773,676.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,528,008.40 : 117,792,012.60 = 44,515,784.40 : x
  2. Step 2: Convert to fraction form
    78,528,008.40/117,792,012.60 = 44,515,784.40/x
  3. Step 3: Cross multiply
    78,528,008.40x = 117,792,012.60 × 44,515,784.40
  4. Step 4: Simplify right side
    78,528,008.40x = 5,243,603,836,943,683
  5. Step 5: Solve for x
    x = 5,243,603,836,943,683/78,528,008.40
  6. Step 6: Final answer
    x = 66,773,676.60

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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.