Home / 210,846,869.78-290,764,267.53-164,420,184.02

Finding the Fourth Proportional to 210,846,869.78, 290,764,267.53 and 164,420,184.02

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Solution

The fourth proportional to 210,846,869.78, 290,764,267.53 and 164,420,184.02 is: 226,740,451.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,846,869.78 : 290,764,267.53 = 164,420,184.02 : x
  2. Step 2: Convert to fraction form
    210,846,869.78/290,764,267.53 = 164,420,184.02/x
  3. Step 3: Cross multiply
    210,846,869.78x = 290,764,267.53 × 164,420,184.02
  4. Step 4: Simplify right side
    210,846,869.78x = 47,807,514,373,723,112
  5. Step 5: Solve for x
    x = 47,807,514,373,723,112/210,846,869.78
  6. Step 6: Final answer
    x = 226,740,451.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.