Home / 13,012,914.60-19,519,371.90-9,989,605.80

Finding the Fourth Proportional to 13,012,914.60, 19,519,371.90 and 9,989,605.80

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Solution

The fourth proportional to 13,012,914.60, 19,519,371.90 and 9,989,605.80 is: 14,984,408.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,012,914.60 : 19,519,371.90 = 9,989,605.80 : x
  2. Step 2: Convert to fraction form
    13,012,914.60/19,519,371.90 = 9,989,605.80/x
  3. Step 3: Cross multiply
    13,012,914.60x = 19,519,371.90 × 9,989,605.80
  4. Step 4: Simplify right side
    13,012,914.60x = 194,990,830,744,597.03
  5. Step 5: Solve for x
    x = 194,990,830,744,597.03/13,012,914.60
  6. Step 6: Final answer
    x = 14,984,408.70

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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.