Home / 12,302,406.90-18,453,610.35-11,686,547.70

Finding the Fourth Proportional to 12,302,406.90, 18,453,610.35 and 11,686,547.70

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Solution

The fourth proportional to 12,302,406.90, 18,453,610.35 and 11,686,547.70 is: 17,529,821.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,302,406.90 : 18,453,610.35 = 11,686,547.70 : x
  2. Step 2: Convert to fraction form
    12,302,406.90/18,453,610.35 = 11,686,547.70/x
  3. Step 3: Cross multiply
    12,302,406.90x = 18,453,610.35 × 11,686,547.70
  4. Step 4: Simplify right side
    12,302,406.90x = 215,658,997,592,488.69
  5. Step 5: Solve for x
    x = 215,658,997,592,488.69/12,302,406.90
  6. Step 6: Final answer
    x = 17,529,821.55

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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.