Home / 258,099,129.90-387,148,343.09-119,849,138.69

Finding the Fourth Proportional to 258,099,129.90, 387,148,343.09 and 119,849,138.69

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Solution

The fourth proportional to 258,099,129.90, 387,148,343.09 and 119,849,138.69 is: 179,773,544.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,099,129.90 : 387,148,343.09 = 119,849,138.69 : x
  2. Step 2: Convert to fraction form
    258,099,129.90/387,148,343.09 = 119,849,138.69/x
  3. Step 3: Cross multiply
    258,099,129.90x = 387,148,343.09 × 119,849,138.69
  4. Step 4: Simplify right side
    258,099,129.90x = 46,399,395,462,062,128
  5. Step 5: Solve for x
    x = 46,399,395,462,062,128/258,099,129.90
  6. Step 6: Final answer
    x = 179,773,544.68

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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.