Home / 401,164,959.57-601,788,670.16-138,849,081.34

Finding the Fourth Proportional to 401,164,959.57, 601,788,670.16 and 138,849,081.34

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Solution

The fourth proportional to 401,164,959.57, 601,788,670.16 and 138,849,081.34 is: 208,287,892.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,164,959.57 : 601,788,670.16 = 138,849,081.34 : x
  2. Step 2: Convert to fraction form
    401,164,959.57/601,788,670.16 = 138,849,081.34/x
  3. Step 3: Cross multiply
    401,164,959.57x = 601,788,670.16 × 138,849,081.34
  4. Step 4: Simplify right side
    401,164,959.57x = 83,557,804,011,462,896
  5. Step 5: Solve for x
    x = 83,557,804,011,462,896/401,164,959.57
  6. Step 6: Final answer
    x = 208,287,892.59

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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.