Home / 313,359,789.21-432,440,429.03-172,246,416.30

Finding the Fourth Proportional to 313,359,789.21, 432,440,429.03 and 172,246,416.30

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Solution

The fourth proportional to 313,359,789.21, 432,440,429.03 and 172,246,416.30 is: 237,702,209.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,359,789.21 : 432,440,429.03 = 172,246,416.30 : x
  2. Step 2: Convert to fraction form
    313,359,789.21/432,440,429.03 = 172,246,416.30/x
  3. Step 3: Cross multiply
    313,359,789.21x = 432,440,429.03 × 172,246,416.30
  4. Step 4: Simplify right side
    313,359,789.21x = 74,486,314,163,436,688
  5. Step 5: Solve for x
    x = 74,486,314,163,436,688/313,359,789.21
  6. Step 6: Final answer
    x = 237,702,209.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.