Home / 688,017,467.80-1,032,026,201.70-430,028,450.20

Finding the Fourth Proportional to 688,017,467.80, 1,032,026,201.70 and 430,028,450.20

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Solution

The fourth proportional to 688,017,467.80, 1,032,026,201.70 and 430,028,450.20 is: 645,042,675.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,017,467.80 : 1,032,026,201.70 = 430,028,450.20 : x
  2. Step 2: Convert to fraction form
    688,017,467.80/1,032,026,201.70 = 430,028,450.20/x
  3. Step 3: Cross multiply
    688,017,467.80x = 1,032,026,201.70 × 430,028,450.20
  4. Step 4: Simplify right side
    688,017,467.80x = 443,800,628,082,843,584
  5. Step 5: Solve for x
    x = 443,800,628,082,843,584/688,017,467.80
  6. Step 6: Final answer
    x = 645,042,675.30

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Similar ratio
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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.