Home / 12,109,919.83-16,698,113.68-9,897,919.69

Finding the Fourth Proportional to 12,109,919.83, 16,698,113.68 and 9,897,919.69

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Solution

The fourth proportional to 12,109,919.83, 16,698,113.68 and 9,897,919.69 is: 13,648,033.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,109,919.83 : 16,698,113.68 = 9,897,919.69 : x
  2. Step 2: Convert to fraction form
    12,109,919.83/16,698,113.68 = 9,897,919.69/x
  3. Step 3: Cross multiply
    12,109,919.83x = 16,698,113.68 × 9,897,919.69
  4. Step 4: Simplify right side
    12,109,919.83x = 165,276,588,134,674.91
  5. Step 5: Solve for x
    x = 165,276,588,134,674.91/12,109,919.83
  6. Step 6: Final answer
    x = 13,648,033.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.