Home / 13,578,870.53-18,738,270.92-7,698,900.28

Finding the Fourth Proportional to 13,578,870.53, 18,738,270.92 and 7,698,900.28

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Solution

The fourth proportional to 13,578,870.53, 18,738,270.92 and 7,698,900.28 is: 10,624,158.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,578,870.53 : 18,738,270.92 = 7,698,900.28 : x
  2. Step 2: Convert to fraction form
    13,578,870.53/18,738,270.92 = 7,698,900.28/x
  3. Step 3: Cross multiply
    13,578,870.53x = 18,738,270.92 × 7,698,900.28
  4. Step 4: Simplify right side
    13,578,870.53x = 144,264,079,232,703.88
  5. Step 5: Solve for x
    x = 144,264,079,232,703.88/13,578,870.53
  6. Step 6: Final answer
    x = 10,624,158.98

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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.