Home / 13,215,572.87-18,237,215.73-7,334,862.06

Finding the Fourth Proportional to 13,215,572.87, 18,237,215.73 and 7,334,862.06

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Solution

The fourth proportional to 13,215,572.87, 18,237,215.73 and 7,334,862.06 is: 10,121,957.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,215,572.87 : 18,237,215.73 = 7,334,862.06 : x
  2. Step 2: Convert to fraction form
    13,215,572.87/18,237,215.73 = 7,334,862.06/x
  3. Step 3: Cross multiply
    13,215,572.87x = 18,237,215.73 × 7,334,862.06
  4. Step 4: Simplify right side
    13,215,572.87x = 133,767,461,738,012.20
  5. Step 5: Solve for x
    x = 133,767,461,738,012.20/13,215,572.87
  6. Step 6: Final answer
    x = 10,121,957.11

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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.