Home / 287,864,166.80-431,796,250.20-165,420,160.40

Finding the Fourth Proportional to 287,864,166.80, 431,796,250.20 and 165,420,160.40

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Solution

The fourth proportional to 287,864,166.80, 431,796,250.20 and 165,420,160.40 is: 248,130,240.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,864,166.80 : 431,796,250.20 = 165,420,160.40 : x
  2. Step 2: Convert to fraction form
    287,864,166.80/431,796,250.20 = 165,420,160.40/x
  3. Step 3: Cross multiply
    287,864,166.80x = 431,796,250.20 × 165,420,160.40
  4. Step 4: Simplify right side
    287,864,166.80x = 71,427,804,968,202,536
  5. Step 5: Solve for x
    x = 71,427,804,968,202,536/287,864,166.80
  6. Step 6: Final answer
    x = 248,130,240.60

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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.