Home / 12,087,869.40-18,145,800.90-7,300,963.80

Finding the Fourth Proportional to 12,087,869.40, 18,145,800.90 and 7,300,963.80

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Solution

The fourth proportional to 12,087,869.40, 18,145,800.90 and 7,300,963.80 is: 10,959,899.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,087,869.40 : 18,145,800.90 = 7,300,963.80 : x
  2. Step 2: Convert to fraction form
    12,087,869.40/18,145,800.90 = 7,300,963.80/x
  3. Step 3: Cross multiply
    12,087,869.40x = 18,145,800.90 × 7,300,963.80
  4. Step 4: Simplify right side
    12,087,869.40x = 132,481,835,492,907.41
  5. Step 5: Solve for x
    x = 132,481,835,492,907.41/12,087,869.40
  6. Step 6: Final answer
    x = 10,959,899.64

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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.