Home / 136,776,319.54-188,749,067.72-74,051,916.01

Finding the Fourth Proportional to 136,776,319.54, 188,749,067.72 and 74,051,916.01

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Solution

The fourth proportional to 136,776,319.54, 188,749,067.72 and 74,051,916.01 is: 102,190,424.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,776,319.54 : 188,749,067.72 = 74,051,916.01 : x
  2. Step 2: Convert to fraction form
    136,776,319.54/188,749,067.72 = 74,051,916.01/x
  3. Step 3: Cross multiply
    136,776,319.54x = 188,749,067.72 × 74,051,916.01
  4. Step 4: Simplify right side
    136,776,319.54x = 13,977,230,108,925,108
  5. Step 5: Solve for x
    x = 13,977,230,108,925,108/136,776,319.54
  6. Step 6: Final answer
    x = 102,190,424.16

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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.