Home / 12,920,509.10-17,831,098.42-7,119,289.10

Finding the Fourth Proportional to 12,920,509.10, 17,831,098.42 and 7,119,289.10

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Solution

The fourth proportional to 12,920,509.10, 17,831,098.42 and 7,119,289.10 is: 9,825,057.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,920,509.10 : 17,831,098.42 = 7,119,289.10 : x
  2. Step 2: Convert to fraction form
    12,920,509.10/17,831,098.42 = 7,119,289.10/x
  3. Step 3: Cross multiply
    12,920,509.10x = 17,831,098.42 × 7,119,289.10
  4. Step 4: Simplify right side
    12,920,509.10x = 126,944,744,622,533.23
  5. Step 5: Solve for x
    x = 126,944,744,622,533.23/12,920,509.10
  6. Step 6: Final answer
    x = 9,825,057.48

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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.