Home / 401,164,956.64-601,788,665.74-138,849,078.39

Finding the Fourth Proportional to 401,164,956.64, 601,788,665.74 and 138,849,078.39

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Solution

The fourth proportional to 401,164,956.64, 601,788,665.74 and 138,849,078.39 is: 208,287,888.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,164,956.64 : 601,788,665.74 = 138,849,078.39 : x
  2. Step 2: Convert to fraction form
    401,164,956.64/601,788,665.74 = 138,849,078.39/x
  3. Step 3: Cross multiply
    401,164,956.64x = 601,788,665.74 × 138,849,078.39
  4. Step 4: Simplify right side
    401,164,956.64x = 83,557,801,621,592,736
  5. Step 5: Solve for x
    x = 83,557,801,621,592,736/401,164,956.64
  6. Step 6: Final answer
    x = 208,287,888.16

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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.