Home / 210,362,110.20-315,543,165.30-207,492,328.80

Finding the Fourth Proportional to 210,362,110.20, 315,543,165.30 and 207,492,328.80

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Solution

The fourth proportional to 210,362,110.20, 315,543,165.30 and 207,492,328.80 is: 311,238,493.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,362,110.20 : 315,543,165.30 = 207,492,328.80 : x
  2. Step 2: Convert to fraction form
    210,362,110.20/315,543,165.30 = 207,492,328.80/x
  3. Step 3: Cross multiply
    210,362,110.20x = 315,543,165.30 × 207,492,328.80
  4. Step 4: Simplify right side
    210,362,110.20x = 65,472,786,205,020,360
  5. Step 5: Solve for x
    x = 65,472,786,205,020,360/210,362,110.20
  6. Step 6: Final answer
    x = 311,238,493.20

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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.