Home / 55,430,999.80-83,052,021.30-47,305,857.40

Finding the Fourth Proportional to 55,430,999.80, 83,052,021.30 and 47,305,857.40

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Solution

The fourth proportional to 55,430,999.80, 83,052,021.30 and 47,305,857.40 is: 70,878,156.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,430,999.80 : 83,052,021.30 = 47,305,857.40 : x
  2. Step 2: Convert to fraction form
    55,430,999.80/83,052,021.30 = 47,305,857.40/x
  3. Step 3: Cross multiply
    55,430,999.80x = 83,052,021.30 × 47,305,857.40
  4. Step 4: Simplify right side
    55,430,999.80x = 3,928,847,076,399,562.50
  5. Step 5: Solve for x
    x = 3,928,847,076,399,562.50/55,430,999.80
  6. Step 6: Final answer
    x = 70,878,156.46

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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.