Home / 8,420,862.20-12,607,673.70-8,184,666.20

Finding the Fourth Proportional to 8,420,862.20, 12,607,673.70 and 8,184,666.20

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Solution

The fourth proportional to 8,420,862.20, 12,607,673.70 and 8,184,666.20 is: 12,254,042.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,420,862.20 : 12,607,673.70 = 8,184,666.20 : x
  2. Step 2: Convert to fraction form
    8,420,862.20/12,607,673.70 = 8,184,666.20/x
  3. Step 3: Cross multiply
    8,420,862.20x = 12,607,673.70 × 8,184,666.20
  4. Step 4: Simplify right side
    8,420,862.20x = 103,189,600,793,018.94
  5. Step 5: Solve for x
    x = 103,189,600,793,018.94/8,420,862.20
  6. Step 6: Final answer
    x = 12,254,042.20

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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.