Home / 12,991,330.80-19,486,996.20-3,406,690.80

Finding the Fourth Proportional to 12,991,330.80, 19,486,996.20 and 3,406,690.80

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Solution

The fourth proportional to 12,991,330.80, 19,486,996.20 and 3,406,690.80 is: 5,110,036.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,991,330.80 : 19,486,996.20 = 3,406,690.80 : x
  2. Step 2: Convert to fraction form
    12,991,330.80/19,486,996.20 = 3,406,690.80/x
  3. Step 3: Cross multiply
    12,991,330.80x = 19,486,996.20 × 3,406,690.80
  4. Step 4: Simplify right side
    12,991,330.80x = 66,386,170,674,174.95
  5. Step 5: Solve for x
    x = 66,386,170,674,174.95/12,991,330.80
  6. Step 6: Final answer
    x = 5,110,036.20

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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.