Home / 19,159,615.80-28,739,423.70-13,112,998.20

Finding the Fourth Proportional to 19,159,615.80, 28,739,423.70 and 13,112,998.20

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Solution

The fourth proportional to 19,159,615.80, 28,739,423.70 and 13,112,998.20 is: 19,669,497.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,159,615.80 : 28,739,423.70 = 13,112,998.20 : x
  2. Step 2: Convert to fraction form
    19,159,615.80/28,739,423.70 = 13,112,998.20/x
  3. Step 3: Cross multiply
    19,159,615.80x = 28,739,423.70 × 13,112,998.20
  4. Step 4: Simplify right side
    19,159,615.80x = 376,860,011,247,137.31
  5. Step 5: Solve for x
    x = 376,860,011,247,137.31/19,159,615.80
  6. Step 6: Final answer
    x = 19,669,497.30

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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.