Home / 82,481,782.47-123,830,802.59-55,309,660.85

Finding the Fourth Proportional to 82,481,782.47, 123,830,802.59 and 55,309,660.85

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Solution

The fourth proportional to 82,481,782.47, 123,830,802.59 and 55,309,660.85 is: 83,036,999.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,481,782.47 : 123,830,802.59 = 55,309,660.85 : x
  2. Step 2: Convert to fraction form
    82,481,782.47/123,830,802.59 = 55,309,660.85/x
  3. Step 3: Cross multiply
    82,481,782.47x = 123,830,802.59 × 55,309,660.85
  4. Step 4: Simplify right side
    82,481,782.47x = 6,849,039,693,140,499
  5. Step 5: Solve for x
    x = 6,849,039,693,140,499/82,481,782.47
  6. Step 6: Final answer
    x = 83,036,999.06

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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.