Home / 331,572,809.40-497,359,214.10-311,400,828.60

Finding the Fourth Proportional to 331,572,809.40, 497,359,214.10 and 311,400,828.60

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Solution

The fourth proportional to 331,572,809.40, 497,359,214.10 and 311,400,828.60 is: 467,101,242.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,572,809.40 : 497,359,214.10 = 311,400,828.60 : x
  2. Step 2: Convert to fraction form
    331,572,809.40/497,359,214.10 = 311,400,828.60/x
  3. Step 3: Cross multiply
    331,572,809.40x = 497,359,214.10 × 311,400,828.60
  4. Step 4: Simplify right side
    331,572,809.40x = 154,878,071,382,584,832
  5. Step 5: Solve for x
    x = 154,878,071,382,584,832/331,572,809.40
  6. Step 6: Final answer
    x = 467,101,242.90

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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.