Home / 19,143,998.10-28,715,997.15-15,742,775.70

Finding the Fourth Proportional to 19,143,998.10, 28,715,997.15 and 15,742,775.70

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Solution

The fourth proportional to 19,143,998.10, 28,715,997.15 and 15,742,775.70 is: 23,614,163.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,143,998.10 : 28,715,997.15 = 15,742,775.70 : x
  2. Step 2: Convert to fraction form
    19,143,998.10/28,715,997.15 = 15,742,775.70/x
  3. Step 3: Cross multiply
    19,143,998.10x = 28,715,997.15 × 15,742,775.70
  4. Step 4: Simplify right side
    19,143,998.10x = 452,069,502,134,289.19
  5. Step 5: Solve for x
    x = 452,069,502,134,289.19/19,143,998.10
  6. Step 6: Final answer
    x = 23,614,163.55

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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.