Home / 19,189,801.80-28,774,205.10-7,817,401.80

Finding the Fourth Proportional to 19,189,801.80, 28,774,205.10 and 7,817,401.80

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Solution

The fourth proportional to 19,189,801.80, 28,774,205.10 and 7,817,401.80 is: 11,721,826.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,189,801.80 : 28,774,205.10 = 7,817,401.80 : x
  2. Step 2: Convert to fraction form
    19,189,801.80/28,774,205.10 = 7,817,401.80/x
  3. Step 3: Cross multiply
    19,189,801.80x = 28,774,205.10 × 7,817,401.80
  4. Step 4: Simplify right side
    19,189,801.80x = 224,939,522,742,309.19
  5. Step 5: Solve for x
    x = 224,939,522,742,309.19/19,189,801.80
  6. Step 6: Final answer
    x = 11,721,826.26

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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.