Home / 13,809,171.69-20,719,730.78-7,411,950.65

Finding the Fourth Proportional to 13,809,171.69, 20,719,730.78 and 7,411,950.65

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Solution

The fourth proportional to 13,809,171.69, 20,719,730.78 and 7,411,950.65 is: 11,121,132.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,809,171.69 : 20,719,730.78 = 7,411,950.65 : x
  2. Step 2: Convert to fraction form
    13,809,171.69/20,719,730.78 = 7,411,950.65/x
  3. Step 3: Cross multiply
    13,809,171.69x = 20,719,730.78 × 7,411,950.65
  4. Step 4: Simplify right side
    13,809,171.69x = 153,573,621,881,987.59
  5. Step 5: Solve for x
    x = 153,573,621,881,987.59/13,809,171.69
  6. Step 6: Final answer
    x = 11,121,132.05

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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.