Home / 323,975,272.10-485,962,908.15-81,638,176.10

Finding the Fourth Proportional to 323,975,272.10, 485,962,908.15 and 81,638,176.10

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Solution

The fourth proportional to 323,975,272.10, 485,962,908.15 and 81,638,176.10 is: 122,457,264.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,975,272.10 : 485,962,908.15 = 81,638,176.10 : x
  2. Step 2: Convert to fraction form
    323,975,272.10/485,962,908.15 = 81,638,176.10/x
  3. Step 3: Cross multiply
    323,975,272.10x = 485,962,908.15 × 81,638,176.10
  4. Step 4: Simplify right side
    323,975,272.10x = 39,673,125,473,617,824
  5. Step 5: Solve for x
    x = 39,673,125,473,617,824/323,975,272.10
  6. Step 6: Final answer
    x = 122,457,264.15

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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.