Home / 210,023,504.80-315,035,257.20-56,669,315.20

Finding the Fourth Proportional to 210,023,504.80, 315,035,257.20 and 56,669,315.20

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Solution

The fourth proportional to 210,023,504.80, 315,035,257.20 and 56,669,315.20 is: 85,003,972.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,023,504.80 : 315,035,257.20 = 56,669,315.20 : x
  2. Step 2: Convert to fraction form
    210,023,504.80/315,035,257.20 = 56,669,315.20/x
  3. Step 3: Cross multiply
    210,023,504.80x = 315,035,257.20 × 56,669,315.20
  4. Step 4: Simplify right side
    210,023,504.80x = 17,852,832,289,379,870
  5. Step 5: Solve for x
    x = 17,852,832,289,379,870/210,023,504.80
  6. Step 6: Final answer
    x = 85,003,972.80

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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.