Home / 210,392,800.80-315,589,201.20-97,146,592.80

Finding the Fourth Proportional to 210,392,800.80, 315,589,201.20 and 97,146,592.80

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Solution

The fourth proportional to 210,392,800.80, 315,589,201.20 and 97,146,592.80 is: 145,719,889.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,392,800.80 : 315,589,201.20 = 97,146,592.80 : x
  2. Step 2: Convert to fraction form
    210,392,800.80/315,589,201.20 = 97,146,592.80/x
  3. Step 3: Cross multiply
    210,392,800.80x = 315,589,201.20 × 97,146,592.80
  4. Step 4: Simplify right side
    210,392,800.80x = 30,658,415,621,053,668
  5. Step 5: Solve for x
    x = 30,658,415,621,053,668/210,392,800.80
  6. Step 6: Final answer
    x = 145,719,889.20

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1.5x scale

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.