Home / 208,476,872.01-287,611,857.05-120,308,316.93

Finding the Fourth Proportional to 208,476,872.01, 287,611,857.05 and 120,308,316.93

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Solution

The fourth proportional to 208,476,872.01, 287,611,857.05 and 120,308,316.93 is: 165,975,717.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,476,872.01 : 287,611,857.05 = 120,308,316.93 : x
  2. Step 2: Convert to fraction form
    208,476,872.01/287,611,857.05 = 120,308,316.93/x
  3. Step 3: Cross multiply
    208,476,872.01x = 287,611,857.05 × 120,308,316.93
  4. Step 4: Simplify right side
    208,476,872.01x = 34,602,098,450,797,260
  5. Step 5: Solve for x
    x = 34,602,098,450,797,260/208,476,872.01
  6. Step 6: Final answer
    x = 165,975,717.68

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.