Home / 78,804,003.80-118,206,005.70-48,570,915.80

Finding the Fourth Proportional to 78,804,003.80, 118,206,005.70 and 48,570,915.80

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Solution

The fourth proportional to 78,804,003.80, 118,206,005.70 and 48,570,915.80 is: 72,856,373.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,804,003.80 : 118,206,005.70 = 48,570,915.80 : x
  2. Step 2: Convert to fraction form
    78,804,003.80/118,206,005.70 = 48,570,915.80/x
  3. Step 3: Cross multiply
    78,804,003.80x = 118,206,005.70 × 48,570,915.80
  4. Step 4: Simplify right side
    78,804,003.80x = 5,741,373,949,909,020
  5. Step 5: Solve for x
    x = 5,741,373,949,909,020/78,804,003.80
  6. Step 6: Final answer
    x = 72,856,373.70

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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.