Home / 13,578,880.10-18,738,284.10-7,698,909.84

Finding the Fourth Proportional to 13,578,880.10, 18,738,284.10 and 7,698,909.84

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Solution

The fourth proportional to 13,578,880.10, 18,738,284.10 and 7,698,909.84 is: 10,624,172.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,578,880.10 : 18,738,284.10 = 7,698,909.84 : x
  2. Step 2: Convert to fraction form
    13,578,880.10/18,738,284.10 = 7,698,909.84/x
  3. Step 3: Cross multiply
    13,578,880.10x = 18,738,284.10 × 7,698,909.84
  4. Step 4: Simplify right side
    13,578,880.10x = 144,264,359,842,205.56
  5. Step 5: Solve for x
    x = 144,264,359,842,205.56/13,578,880.10
  6. Step 6: Final answer
    x = 10,624,172.15

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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.