Home / 78,812,431,789.14-118,233,857,526.75-25,739,196,787.26

Finding the Fourth Proportional to 78,812,431,789.14, 118,233,857,526.75 and 25,739,196,787.26

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Solution

The fourth proportional to 78,812,431,789.14, 118,233,857,526.75 and 25,739,196,787.26 is: 38,613,762,533.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,812,431,789.14 : 118,233,857,526.75 = 25,739,196,787.26 : x
  2. Step 2: Convert to fraction form
    78,812,431,789.14/118,233,857,526.75 = 25,739,196,787.26/x
  3. Step 3: Cross multiply
    78,812,431,789.14x = 118,233,857,526.75 × 25,739,196,787.26
  4. Step 4: Simplify right side
    78,812,431,789.14x = 3,043,244,525,797,879,840,768
  5. Step 5: Solve for x
    x = 3,043,244,525,797,879,840,768/78,812,431,789.14
  6. Step 6: Final answer
    x = 38,613,762,533.56

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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.