Home / 13,147,112.90-19,720,669.35-8,900,380.10

Finding the Fourth Proportional to 13,147,112.90, 19,720,669.35 and 8,900,380.10

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Solution

The fourth proportional to 13,147,112.90, 19,720,669.35 and 8,900,380.10 is: 13,350,570.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,147,112.90 : 19,720,669.35 = 8,900,380.10 : x
  2. Step 2: Convert to fraction form
    13,147,112.90/19,720,669.35 = 8,900,380.10/x
  3. Step 3: Cross multiply
    13,147,112.90x = 19,720,669.35 × 8,900,380.10
  4. Step 4: Simplify right side
    13,147,112.90x = 175,521,453,041,419.94
  5. Step 5: Solve for x
    x = 175,521,453,041,419.94/13,147,112.90
  6. Step 6: Final answer
    x = 13,350,570.15

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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.