Home / 12,209,987.40-18,314,981.10-3,112,067.40

Finding the Fourth Proportional to 12,209,987.40, 18,314,981.10 and 3,112,067.40

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Solution

The fourth proportional to 12,209,987.40, 18,314,981.10 and 3,112,067.40 is: 4,668,101.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,209,987.40 : 18,314,981.10 = 3,112,067.40 : x
  2. Step 2: Convert to fraction form
    12,209,987.40/18,314,981.10 = 3,112,067.40/x
  3. Step 3: Cross multiply
    12,209,987.40x = 18,314,981.10 × 3,112,067.40
  4. Step 4: Simplify right side
    12,209,987.40x = 56,997,455,612,926.14
  5. Step 5: Solve for x
    x = 56,997,455,612,926.14/12,209,987.40
  6. Step 6: Final answer
    x = 4,668,101.10

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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.