Home / 85,128,897.96-127,688,621.94-75,652,714.44

Finding the Fourth Proportional to 85,128,897.96, 127,688,621.94 and 75,652,714.44

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Solution

The fourth proportional to 85,128,897.96, 127,688,621.94 and 75,652,714.44 is: 113,474,872.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,128,897.96 : 127,688,621.94 = 75,652,714.44 : x
  2. Step 2: Convert to fraction form
    85,128,897.96/127,688,621.94 = 75,652,714.44/x
  3. Step 3: Cross multiply
    85,128,897.96x = 127,688,621.94 × 75,652,714.44
  4. Step 4: Simplify right side
    85,128,897.96x = 9,659,990,852,863,938
  5. Step 5: Solve for x
    x = 9,659,990,852,863,938/85,128,897.96
  6. Step 6: Final answer
    x = 113,474,872.63

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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.