Home / 252,605,927.70-378,908,891.55-143,388,897.30

Finding the Fourth Proportional to 252,605,927.70, 378,908,891.55 and 143,388,897.30

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Solution

The fourth proportional to 252,605,927.70, 378,908,891.55 and 143,388,897.30 is: 215,083,345.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,605,927.70 : 378,908,891.55 = 143,388,897.30 : x
  2. Step 2: Convert to fraction form
    252,605,927.70/378,908,891.55 = 143,388,897.30/x
  3. Step 3: Cross multiply
    252,605,927.70x = 378,908,891.55 × 143,388,897.30
  4. Step 4: Simplify right side
    252,605,927.70x = 54,331,328,136,519,792
  5. Step 5: Solve for x
    x = 54,331,328,136,519,792/252,605,927.70
  6. Step 6: Final answer
    x = 215,083,345.95

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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.