Home / 19,959,139.20-29,938,708.80-10,889,212.80

Finding the Fourth Proportional to 19,959,139.20, 29,938,708.80 and 10,889,212.80

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Solution

The fourth proportional to 19,959,139.20, 29,938,708.80 and 10,889,212.80 is: 16,333,819.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,959,139.20 : 29,938,708.80 = 10,889,212.80 : x
  2. Step 2: Convert to fraction form
    19,959,139.20/29,938,708.80 = 10,889,212.80/x
  3. Step 3: Cross multiply
    19,959,139.20x = 29,938,708.80 × 10,889,212.80
  4. Step 4: Simplify right side
    19,959,139.20x = 326,008,971,080,432.69
  5. Step 5: Solve for x
    x = 326,008,971,080,432.69/19,959,139.20
  6. Step 6: Final answer
    x = 16,333,819.20

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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.