Home / 72,426,783.60-108,640,175.40-65,836,915.20

Finding the Fourth Proportional to 72,426,783.60, 108,640,175.40 and 65,836,915.20

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Solution

The fourth proportional to 72,426,783.60, 108,640,175.40 and 65,836,915.20 is: 98,755,372.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,426,783.60 : 108,640,175.40 = 65,836,915.20 : x
  2. Step 2: Convert to fraction form
    72,426,783.60/108,640,175.40 = 65,836,915.20/x
  3. Step 3: Cross multiply
    72,426,783.60x = 108,640,175.40 × 65,836,915.20
  4. Step 4: Simplify right side
    72,426,783.60x = 7,152,534,015,122,927
  5. Step 5: Solve for x
    x = 7,152,534,015,122,927/72,426,783.60
  6. Step 6: Final answer
    x = 98,755,372.80

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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.