Home / 144,584,657.52-199,528,261.04-78,505,697.28

Finding the Fourth Proportional to 144,584,657.52, 199,528,261.04 and 78,505,697.28

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Solution

The fourth proportional to 144,584,657.52, 199,528,261.04 and 78,505,697.28 is: 108,338,640.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,584,657.52 : 199,528,261.04 = 78,505,697.28 : x
  2. Step 2: Convert to fraction form
    144,584,657.52/199,528,261.04 = 78,505,697.28/x
  3. Step 3: Cross multiply
    144,584,657.52x = 199,528,261.04 × 78,505,697.28
  4. Step 4: Simplify right side
    144,584,657.52x = 15,664,105,260,011,058
  5. Step 5: Solve for x
    x = 15,664,105,260,011,058/144,584,657.52
  6. Step 6: Final answer
    x = 108,338,640.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.