Home / 78,755,714.40-118,133,571.60-51,545,935.20

Finding the Fourth Proportional to 78,755,714.40, 118,133,571.60 and 51,545,935.20

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Solution

The fourth proportional to 78,755,714.40, 118,133,571.60 and 51,545,935.20 is: 77,318,902.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,755,714.40 : 118,133,571.60 = 51,545,935.20 : x
  2. Step 2: Convert to fraction form
    78,755,714.40/118,133,571.60 = 51,545,935.20/x
  3. Step 3: Cross multiply
    78,755,714.40x = 118,133,571.60 × 51,545,935.20
  4. Step 4: Simplify right side
    78,755,714.40x = 6,089,305,426,638,160
  5. Step 5: Solve for x
    x = 6,089,305,426,638,160/78,755,714.40
  6. Step 6: Final answer
    x = 77,318,902.80

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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.