Home / 68,205,587.31-102,306,903.80-19,020,128.24

Finding the Fourth Proportional to 68,205,587.31, 102,306,903.80 and 19,020,128.24

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Solution

The fourth proportional to 68,205,587.31, 102,306,903.80 and 19,020,128.24 is: 28,529,780.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,205,587.31 : 102,306,903.80 = 19,020,128.24 : x
  2. Step 2: Convert to fraction form
    68,205,587.31/102,306,903.80 = 19,020,128.24/x
  3. Step 3: Cross multiply
    68,205,587.31x = 102,306,903.80 × 19,020,128.24
  4. Step 4: Simplify right side
    68,205,587.31x = 1,945,890,429,905,126.25
  5. Step 5: Solve for x
    x = 1,945,890,429,905,126.25/68,205,587.31
  6. Step 6: Final answer
    x = 28,529,780.43

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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.