Home / 323,637,125.40-485,455,688.10-318,262,354.20

Finding the Fourth Proportional to 323,637,125.40, 485,455,688.10 and 318,262,354.20

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Solution

The fourth proportional to 323,637,125.40, 485,455,688.10 and 318,262,354.20 is: 477,393,531.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,637,125.40 : 485,455,688.10 = 318,262,354.20 : x
  2. Step 2: Convert to fraction form
    323,637,125.40/485,455,688.10 = 318,262,354.20/x
  3. Step 3: Cross multiply
    323,637,125.40x = 485,455,688.10 × 318,262,354.20
  4. Step 4: Simplify right side
    323,637,125.40x = 154,502,270,154,486,912
  5. Step 5: Solve for x
    x = 154,502,270,154,486,912/323,637,125.40
  6. Step 6: Final answer
    x = 477,393,531.30

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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.