Home / 12,013,815.84-18,020,532.80-2,915,988.72

Finding the Fourth Proportional to 12,013,815.84, 18,020,532.80 and 2,915,988.72

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Solution

The fourth proportional to 12,013,815.84, 18,020,532.80 and 2,915,988.72 is: 4,373,936.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,013,815.84 : 18,020,532.80 = 2,915,988.72 : x
  2. Step 2: Convert to fraction form
    12,013,815.84/18,020,532.80 = 2,915,988.72/x
  3. Step 3: Cross multiply
    12,013,815.84x = 18,020,532.80 × 2,915,988.72
  4. Step 4: Simplify right side
    12,013,815.84x = 52,547,670,373,190.02
  5. Step 5: Solve for x
    x = 52,547,670,373,190.02/12,013,815.84
  6. Step 6: Final answer
    x = 4,373,936.73

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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.