Home / 172,457,348.40-258,686,022.60-162,253,681.20

Finding the Fourth Proportional to 172,457,348.40, 258,686,022.60 and 162,253,681.20

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Solution

The fourth proportional to 172,457,348.40, 258,686,022.60 and 162,253,681.20 is: 243,380,521.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,457,348.40 : 258,686,022.60 = 162,253,681.20 : x
  2. Step 2: Convert to fraction form
    172,457,348.40/258,686,022.60 = 162,253,681.20/x
  3. Step 3: Cross multiply
    172,457,348.40x = 258,686,022.60 × 162,253,681.20
  4. Step 4: Simplify right side
    172,457,348.40x = 41,972,759,441,836,392
  5. Step 5: Solve for x
    x = 41,972,759,441,836,392/172,457,348.40
  6. Step 6: Final answer
    x = 243,380,521.80

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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.