Home / 81,080,136.99-111,901,721.36-49,712,637.51

Finding the Fourth Proportional to 81,080,136.99, 111,901,721.36 and 49,712,637.51

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Solution

The fourth proportional to 81,080,136.99, 111,901,721.36 and 49,712,637.51 is: 68,610,265.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,080,136.99 : 111,901,721.36 = 49,712,637.51 : x
  2. Step 2: Convert to fraction form
    81,080,136.99/111,901,721.36 = 49,712,637.51/x
  3. Step 3: Cross multiply
    81,080,136.99x = 111,901,721.36 × 49,712,637.51
  4. Step 4: Simplify right side
    81,080,136.99x = 5,562,929,710,714,704
  5. Step 5: Solve for x
    x = 5,562,929,710,714,704/81,080,136.99
  6. Step 6: Final answer
    x = 68,610,265.32

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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.