Home / 15,228,239.20-21,019,675.80-9,795,731.20

Finding the Fourth Proportional to 15,228,239.20, 21,019,675.80 and 9,795,731.20

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Solution

The fourth proportional to 15,228,239.20, 21,019,675.80 and 9,795,731.20 is: 13,521,136.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,228,239.20 : 21,019,675.80 = 9,795,731.20 : x
  2. Step 2: Convert to fraction form
    15,228,239.20/21,019,675.80 = 9,795,731.20/x
  3. Step 3: Cross multiply
    15,228,239.20x = 21,019,675.80 × 9,795,731.20
  4. Step 4: Simplify right side
    15,228,239.20x = 205,903,094,047,944.94
  5. Step 5: Solve for x
    x = 205,903,094,047,944.94/15,228,239.20
  6. Step 6: Final answer
    x = 13,521,136.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.