Home / 20,736,090.90-31,104,136.35-19,475,342.10

Finding the Fourth Proportional to 20,736,090.90, 31,104,136.35 and 19,475,342.10

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Solution

The fourth proportional to 20,736,090.90, 31,104,136.35 and 19,475,342.10 is: 29,213,013.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,736,090.90 : 31,104,136.35 = 19,475,342.10 : x
  2. Step 2: Convert to fraction form
    20,736,090.90/31,104,136.35 = 19,475,342.10/x
  3. Step 3: Cross multiply
    20,736,090.90x = 31,104,136.35 × 19,475,342.10
  4. Step 4: Simplify right side
    20,736,090.90x = 605,763,696,141,295.38
  5. Step 5: Solve for x
    x = 605,763,696,141,295.38/20,736,090.90
  6. Step 6: Final answer
    x = 29,213,013.15

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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.