Home / 15,529,328.06-21,431,431.53-8,559,989.90

Finding the Fourth Proportional to 15,529,328.06, 21,431,431.53 and 8,559,989.90

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Solution

The fourth proportional to 15,529,328.06, 21,431,431.53 and 8,559,989.90 is: 11,813,314.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,529,328.06 : 21,431,431.53 = 8,559,989.90 : x
  2. Step 2: Convert to fraction form
    15,529,328.06/21,431,431.53 = 8,559,989.90/x
  3. Step 3: Cross multiply
    15,529,328.06x = 21,431,431.53 × 8,559,989.90
  4. Step 4: Simplify right side
    15,529,328.06x = 183,452,837,289,384.41
  5. Step 5: Solve for x
    x = 183,452,837,289,384.41/15,529,328.06
  6. Step 6: Final answer
    x = 11,813,314.56

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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.