Home / 215,785,310.80-323,677,966.20-190,843,013.20

Finding the Fourth Proportional to 215,785,310.80, 323,677,966.20 and 190,843,013.20

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Solution

The fourth proportional to 215,785,310.80, 323,677,966.20 and 190,843,013.20 is: 286,264,519.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,785,310.80 : 323,677,966.20 = 190,843,013.20 : x
  2. Step 2: Convert to fraction form
    215,785,310.80/323,677,966.20 = 190,843,013.20/x
  3. Step 3: Cross multiply
    215,785,310.80x = 323,677,966.20 × 190,843,013.20
  4. Step 4: Simplify right side
    215,785,310.80x = 61,771,678,376,055,744
  5. Step 5: Solve for x
    x = 61,771,678,376,055,744/215,785,310.80
  6. Step 6: Final answer
    x = 286,264,519.80

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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.