Home / 12,145,215.72-18,221,359.22-5,746,666.08

Finding the Fourth Proportional to 12,145,215.72, 18,221,359.22 and 5,746,666.08

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Solution

The fourth proportional to 12,145,215.72, 18,221,359.22 and 5,746,666.08 is: 8,621,672.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,145,215.72 : 18,221,359.22 = 5,746,666.08 : x
  2. Step 2: Convert to fraction form
    12,145,215.72/18,221,359.22 = 5,746,666.08/x
  3. Step 3: Cross multiply
    12,145,215.72x = 18,221,359.22 × 5,746,666.08
  4. Step 4: Simplify right side
    12,145,215.72x = 104,712,066,961,069.25
  5. Step 5: Solve for x
    x = 104,712,066,961,069.25/12,145,215.72
  6. Step 6: Final answer
    x = 8,621,672.05

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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.