Home / 12,946,214.40-19,423,987.20-5,378,611.20

Finding the Fourth Proportional to 12,946,214.40, 19,423,987.20 and 5,378,611.20

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Solution

The fourth proportional to 12,946,214.40, 19,423,987.20 and 5,378,611.20 is: 8,069,855.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,946,214.40 : 19,423,987.20 = 5,378,611.20 : x
  2. Step 2: Convert to fraction form
    12,946,214.40/19,423,987.20 = 5,378,611.20/x
  3. Step 3: Cross multiply
    12,946,214.40x = 19,423,987.20 × 5,378,611.20
  4. Step 4: Simplify right side
    12,946,214.40x = 104,474,075,102,576.64
  5. Step 5: Solve for x
    x = 104,474,075,102,576.64/12,946,214.40
  6. Step 6: Final answer
    x = 8,069,855.16

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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.