Home / 354,602,498.20-531,455,849.70-172,457,474.20

Finding the Fourth Proportional to 354,602,498.20, 531,455,849.70 and 172,457,474.20

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Solution

The fourth proportional to 354,602,498.20, 531,455,849.70 and 172,457,474.20 is: 258,468,380.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,602,498.20 : 531,455,849.70 = 172,457,474.20 : x
  2. Step 2: Convert to fraction form
    354,602,498.20/531,455,849.70 = 172,457,474.20/x
  3. Step 3: Cross multiply
    354,602,498.20x = 531,455,849.70 × 172,457,474.20
  4. Step 4: Simplify right side
    354,602,498.20x = 91,653,533,488,076,816
  5. Step 5: Solve for x
    x = 91,653,533,488,076,816/354,602,498.20
  6. Step 6: Final answer
    x = 258,468,380.66

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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.