Home / 210,362,111.20-315,543,166.80-207,492,329.80

Finding the Fourth Proportional to 210,362,111.20, 315,543,166.80 and 207,492,329.80

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Solution

The fourth proportional to 210,362,111.20, 315,543,166.80 and 207,492,329.80 is: 311,238,494.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,362,111.20 : 315,543,166.80 = 207,492,329.80 : x
  2. Step 2: Convert to fraction form
    210,362,111.20/315,543,166.80 = 207,492,329.80/x
  3. Step 3: Cross multiply
    210,362,111.20x = 315,543,166.80 × 207,492,329.80
  4. Step 4: Simplify right side
    210,362,111.20x = 65,472,786,831,802,016
  5. Step 5: Solve for x
    x = 65,472,786,831,802,016/210,362,111.20
  6. Step 6: Final answer
    x = 311,238,494.70

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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.