Home / 78,801,415.62-118,190,001.24-26,280,009.83

Finding the Fourth Proportional to 78,801,415.62, 118,190,001.24 and 26,280,009.83

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Solution

The fourth proportional to 78,801,415.62, 118,190,001.24 and 26,280,009.83 is: 39,415,972.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,801,415.62 : 118,190,001.24 = 26,280,009.83 : x
  2. Step 2: Convert to fraction form
    78,801,415.62/118,190,001.24 = 26,280,009.83/x
  3. Step 3: Cross multiply
    78,801,415.62x = 118,190,001.24 × 26,280,009.83
  4. Step 4: Simplify right side
    78,801,415.62x = 3,106,034,393,803,962
  5. Step 5: Solve for x
    x = 3,106,034,393,803,962/78,801,415.62
  6. Step 6: Final answer
    x = 39,415,972.03

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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.