Home / 19,487,145.12-29,172,479.40-11,787,488.16

Finding the Fourth Proportional to 19,487,145.12, 29,172,479.40 and 11,787,488.16

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Solution

The fourth proportional to 19,487,145.12, 29,172,479.40 and 11,787,488.16 is: 17,646,004.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,487,145.12 : 29,172,479.40 = 11,787,488.16 : x
  2. Step 2: Convert to fraction form
    19,487,145.12/29,172,479.40 = 11,787,488.16/x
  3. Step 3: Cross multiply
    19,487,145.12x = 29,172,479.40 × 11,787,488.16
  4. Step 4: Simplify right side
    19,487,145.12x = 343,870,255,525,343.88
  5. Step 5: Solve for x
    x = 343,870,255,525,343.88/19,487,145.12
  6. Step 6: Final answer
    x = 17,646,004.76

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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.