Home / 169,435,810.80-254,189,145.60-54,431,978.40

Finding the Fourth Proportional to 169,435,810.80, 254,189,145.60 and 54,431,978.40

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Solution

The fourth proportional to 169,435,810.80, 254,189,145.60 and 54,431,978.40 is: 81,659,349.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,435,810.80 : 254,189,145.60 = 54,431,978.40 : x
  2. Step 2: Convert to fraction form
    169,435,810.80/254,189,145.60 = 54,431,978.40/x
  3. Step 3: Cross multiply
    169,435,810.80x = 254,189,145.60 × 54,431,978.40
  4. Step 4: Simplify right side
    169,435,810.80x = 13,836,018,082,813,654
  5. Step 5: Solve for x
    x = 13,836,018,082,813,654/169,435,810.80
  6. Step 6: Final answer
    x = 81,659,349.45

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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.