Home / 19,869,287.80-29,803,931.70-18,693,556.60

Finding the Fourth Proportional to 19,869,287.80, 29,803,931.70 and 18,693,556.60

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Solution

The fourth proportional to 19,869,287.80, 29,803,931.70 and 18,693,556.60 is: 28,040,334.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,869,287.80 : 29,803,931.70 = 18,693,556.60 : x
  2. Step 2: Convert to fraction form
    19,869,287.80/29,803,931.70 = 18,693,556.60/x
  3. Step 3: Cross multiply
    19,869,287.80x = 29,803,931.70 × 18,693,556.60
  4. Step 4: Simplify right side
    19,869,287.80x = 557,141,484,136,484.25
  5. Step 5: Solve for x
    x = 557,141,484,136,484.25/19,869,287.80
  6. Step 6: Final answer
    x = 28,040,334.90

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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.