Home / 74,347,259.80-111,520,889.70-66,056,780.20

Finding the Fourth Proportional to 74,347,259.80, 111,520,889.70 and 66,056,780.20

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Solution

The fourth proportional to 74,347,259.80, 111,520,889.70 and 66,056,780.20 is: 99,085,170.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,347,259.80 : 111,520,889.70 = 66,056,780.20 : x
  2. Step 2: Convert to fraction form
    74,347,259.80/111,520,889.70 = 66,056,780.20/x
  3. Step 3: Cross multiply
    74,347,259.80x = 111,520,889.70 × 66,056,780.20
  4. Step 4: Simplify right side
    74,347,259.80x = 7,366,710,898,621,344
  5. Step 5: Solve for x
    x = 7,366,710,898,621,344/74,347,259.80
  6. Step 6: Final answer
    x = 99,085,170.30

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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.