Home / 78,968,140,948.40-118,448,039,605.80-25,902,184,033.04

Finding the Fourth Proportional to 78,968,140,948.40, 118,448,039,605.80 and 25,902,184,033.04

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Solution

The fourth proportional to 78,968,140,948.40, 118,448,039,605.80 and 25,902,184,033.04 is: 38,851,907,660.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,968,140,948.40 : 118,448,039,605.80 = 25,902,184,033.04 : x
  2. Step 2: Convert to fraction form
    78,968,140,948.40/118,448,039,605.80 = 25,902,184,033.04/x
  3. Step 3: Cross multiply
    78,968,140,948.40x = 118,448,039,605.80 × 25,902,184,033.04
  4. Step 4: Simplify right side
    78,968,140,948.40x = 3,068,062,920,222,242,242,560
  5. Step 5: Solve for x
    x = 3,068,062,920,222,242,242,560/78,968,140,948.40
  6. Step 6: Final answer
    x = 38,851,907,660.17

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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.