Home / 208,270,505.87-312,185,496.82-77,028,438.36

Finding the Fourth Proportional to 208,270,505.87, 312,185,496.82 and 77,028,438.36

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Solution

The fourth proportional to 208,270,505.87, 312,185,496.82 and 77,028,438.36 is: 115,461,194.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,270,505.87 : 312,185,496.82 = 77,028,438.36 : x
  2. Step 2: Convert to fraction form
    208,270,505.87/312,185,496.82 = 77,028,438.36/x
  3. Step 3: Cross multiply
    208,270,505.87x = 312,185,496.82 × 77,028,438.36
  4. Step 4: Simplify right side
    208,270,505.87x = 24,047,161,298,492,776
  5. Step 5: Solve for x
    x = 24,047,161,298,492,776/208,270,505.87
  6. Step 6: Final answer
    x = 115,461,194.07

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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.