Home / 78,802,570.40-118,276,512.96-39,968,273.92

Finding the Fourth Proportional to 78,802,570.40, 118,276,512.96 and 39,968,273.92

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Solution

The fourth proportional to 78,802,570.40, 118,276,512.96 and 39,968,273.92 is: 59,989,262.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,802,570.40 : 118,276,512.96 = 39,968,273.92 : x
  2. Step 2: Convert to fraction form
    78,802,570.40/118,276,512.96 = 39,968,273.92/x
  3. Step 3: Cross multiply
    78,802,570.40x = 118,276,512.96 × 39,968,273.92
  4. Step 4: Simplify right side
    78,802,570.40x = 4,727,308,068,287,710
  5. Step 5: Solve for x
    x = 4,727,308,068,287,710/78,802,570.40
  6. Step 6: Final answer
    x = 59,989,262.33

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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.