Home / 309,846,534.64-427,588,217.22-170,616,965.20

Finding the Fourth Proportional to 309,846,534.64, 427,588,217.22 and 170,616,965.20

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Solution

The fourth proportional to 309,846,534.64, 427,588,217.22 and 170,616,965.20 is: 235,451,411.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,846,534.64 : 427,588,217.22 = 170,616,965.20 : x
  2. Step 2: Convert to fraction form
    309,846,534.64/427,588,217.22 = 170,616,965.20/x
  3. Step 3: Cross multiply
    309,846,534.64x = 427,588,217.22 × 170,616,965.20
  4. Step 4: Simplify right side
    309,846,534.64x = 72,953,803,977,354,784
  5. Step 5: Solve for x
    x = 72,953,803,977,354,784/309,846,534.64
  6. Step 6: Final answer
    x = 235,451,411.65

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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.