Home / 151,464,942.18-209,040,030.38-85,398,165.36

Finding the Fourth Proportional to 151,464,942.18, 209,040,030.38 and 85,398,165.36

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Solution

The fourth proportional to 151,464,942.18, 209,040,030.38 and 85,398,165.36 is: 117,859,848.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,464,942.18 : 209,040,030.38 = 85,398,165.36 : x
  2. Step 2: Convert to fraction form
    151,464,942.18/209,040,030.38 = 85,398,165.36/x
  3. Step 3: Cross multiply
    151,464,942.18x = 209,040,030.38 × 85,398,165.36
  4. Step 4: Simplify right side
    151,464,942.18x = 17,851,635,081,250,664
  5. Step 5: Solve for x
    x = 17,851,635,081,250,664/151,464,942.18
  6. Step 6: Final answer
    x = 117,859,848.12

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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.