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Finding the Fourth Proportional to 56,652,005.80, 84,978,008.70 and 52,305,999.40

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Solution

The fourth proportional to 56,652,005.80, 84,978,008.70 and 52,305,999.40 is: 78,458,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,652,005.80 : 84,978,008.70 = 52,305,999.40 : x
  2. Step 2: Convert to fraction form
    56,652,005.80/84,978,008.70 = 52,305,999.40/x
  3. Step 3: Cross multiply
    56,652,005.80x = 84,978,008.70 × 52,305,999.40
  4. Step 4: Simplify right side
    56,652,005.80x = 4,444,859,672,075,395
  5. Step 5: Solve for x
    x = 4,444,859,672,075,395/56,652,005.80
  6. Step 6: Final answer
    x = 78,458,999.10

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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.