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Finding the Fourth Proportional to 311,699,957.71, 467,622,698.05 and 90,375,927.07

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Solution

The fourth proportional to 311,699,957.71, 467,622,698.05 and 90,375,927.07 is: 135,584,987.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,699,957.71 : 467,622,698.05 = 90,375,927.07 : x
  2. Step 2: Convert to fraction form
    311,699,957.71/467,622,698.05 = 90,375,927.07/x
  3. Step 3: Cross multiply
    311,699,957.71x = 467,622,698.05 × 90,375,927.07
  4. Step 4: Simplify right side
    311,699,957.71x = 42,261,834,855,317,192
  5. Step 5: Solve for x
    x = 42,261,834,855,317,192/311,699,957.71
  6. Step 6: Final answer
    x = 135,584,987.45

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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.