Home / 19,806,145.20-29,709,217.80-10,240,207.20

Finding the Fourth Proportional to 19,806,145.20, 29,709,217.80 and 10,240,207.20

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Solution

The fourth proportional to 19,806,145.20, 29,709,217.80 and 10,240,207.20 is: 15,360,310.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,806,145.20 : 29,709,217.80 = 10,240,207.20 : x
  2. Step 2: Convert to fraction form
    19,806,145.20/29,709,217.80 = 10,240,207.20/x
  3. Step 3: Cross multiply
    19,806,145.20x = 29,709,217.80 × 10,240,207.20
  4. Step 4: Simplify right side
    19,806,145.20x = 304,228,546,021,928.12
  5. Step 5: Solve for x
    x = 304,228,546,021,928.12/19,806,145.20
  6. Step 6: Final answer
    x = 15,360,310.80

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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.