Home / 20,537,787.09-30,813,126.81-12,349,855.92

Finding the Fourth Proportional to 20,537,787.09, 30,813,126.81 and 12,349,855.92

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Solution

The fourth proportional to 20,537,787.09, 30,813,126.81 and 12,349,855.92 is: 18,528,660.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,537,787.09 : 30,813,126.81 = 12,349,855.92 : x
  2. Step 2: Convert to fraction form
    20,537,787.09/30,813,126.81 = 12,349,855.92/x
  3. Step 3: Cross multiply
    20,537,787.09x = 30,813,126.81 × 12,349,855.92
  4. Step 4: Simplify right side
    20,537,787.09x = 380,537,676,548,189.19
  5. Step 5: Solve for x
    x = 380,537,676,548,189.19/20,537,787.09
  6. Step 6: Final answer
    x = 18,528,660.12

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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.