Home / 7,877,840.16-11,816,763.76-2,487,037.28

Finding the Fourth Proportional to 7,877,840.16, 11,816,763.76 and 2,487,037.28

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Solution

The fourth proportional to 7,877,840.16, 11,816,763.76 and 2,487,037.28 is: 3,730,557.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,877,840.16 : 11,816,763.76 = 2,487,037.28 : x
  2. Step 2: Convert to fraction form
    7,877,840.16/11,816,763.76 = 2,487,037.28/x
  3. Step 3: Cross multiply
    7,877,840.16x = 11,816,763.76 × 2,487,037.28
  4. Step 4: Simplify right side
    7,877,840.16x = 29,388,732,000,072.97
  5. Step 5: Solve for x
    x = 29,388,732,000,072.97/7,877,840.16
  6. Step 6: Final answer
    x = 3,730,557.03

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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.