Home / 210,658,475.20-315,987,712.80-108,621,803.20

Finding the Fourth Proportional to 210,658,475.20, 315,987,712.80 and 108,621,803.20

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Solution

The fourth proportional to 210,658,475.20, 315,987,712.80 and 108,621,803.20 is: 162,932,704.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,658,475.20 : 315,987,712.80 = 108,621,803.20 : x
  2. Step 2: Convert to fraction form
    210,658,475.20/315,987,712.80 = 108,621,803.20/x
  3. Step 3: Cross multiply
    210,658,475.20x = 315,987,712.80 × 108,621,803.20
  4. Step 4: Simplify right side
    210,658,475.20x = 34,323,155,153,379,724
  5. Step 5: Solve for x
    x = 34,323,155,153,379,724/210,658,475.20
  6. Step 6: Final answer
    x = 162,932,704.80

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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.