Home / 315,533,999.10-473,300,998.65-213,612,411.90

Finding the Fourth Proportional to 315,533,999.10, 473,300,998.65 and 213,612,411.90

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Solution

The fourth proportional to 315,533,999.10, 473,300,998.65 and 213,612,411.90 is: 320,418,617.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,533,999.10 : 473,300,998.65 = 213,612,411.90 : x
  2. Step 2: Convert to fraction form
    315,533,999.10/473,300,998.65 = 213,612,411.90/x
  3. Step 3: Cross multiply
    315,533,999.10x = 473,300,998.65 × 213,612,411.90
  4. Step 4: Simplify right side
    315,533,999.10x = 101,102,967,876,305,136
  5. Step 5: Solve for x
    x = 101,102,967,876,305,136/315,533,999.10
  6. Step 6: Final answer
    x = 320,418,617.85

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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.