Home / 210,362,128.20-315,543,192.30-207,492,346.80

Finding the Fourth Proportional to 210,362,128.20, 315,543,192.30 and 207,492,346.80

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Solution

The fourth proportional to 210,362,128.20, 315,543,192.30 and 207,492,346.80 is: 311,238,520.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,362,128.20 : 315,543,192.30 = 207,492,346.80 : x
  2. Step 2: Convert to fraction form
    210,362,128.20/315,543,192.30 = 207,492,346.80/x
  3. Step 3: Cross multiply
    210,362,128.20x = 315,543,192.30 × 207,492,346.80
  4. Step 4: Simplify right side
    210,362,128.20x = 65,472,797,487,090,696
  5. Step 5: Solve for x
    x = 65,472,797,487,090,696/210,362,128.20
  6. Step 6: Final answer
    x = 311,238,520.20

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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.