Home / 208,574,052.12-287,701,267.14-123,741,110.70

Finding the Fourth Proportional to 208,574,052.12, 287,701,267.14 and 123,741,110.70

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Solution

The fourth proportional to 208,574,052.12, 287,701,267.14 and 123,741,110.70 is: 170,685,058.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,574,052.12 : 287,701,267.14 = 123,741,110.70 : x
  2. Step 2: Convert to fraction form
    208,574,052.12/287,701,267.14 = 123,741,110.70/x
  3. Step 3: Cross multiply
    208,574,052.12x = 287,701,267.14 × 123,741,110.70
  4. Step 4: Simplify right side
    208,574,052.12x = 35,600,474,345,701,012
  5. Step 5: Solve for x
    x = 35,600,474,345,701,012/208,574,052.12
  6. Step 6: Final answer
    x = 170,685,058.78

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Why These Related Problems?

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