Home / 257,934,796.72-355,940,668.77-157,631,042.18

Finding the Fourth Proportional to 257,934,796.72, 355,940,668.77 and 157,631,042.18

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Solution

The fourth proportional to 257,934,796.72, 355,940,668.77 and 157,631,042.18 is: 217,525,123.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,934,796.72 : 355,940,668.77 = 157,631,042.18 : x
  2. Step 2: Convert to fraction form
    257,934,796.72/355,940,668.77 = 157,631,042.18/x
  3. Step 3: Cross multiply
    257,934,796.72x = 355,940,668.77 × 157,631,042.18
  4. Step 4: Simplify right side
    257,934,796.72x = 56,107,298,572,461,280
  5. Step 5: Solve for x
    x = 56,107,298,572,461,280/257,934,796.72
  6. Step 6: Final answer
    x = 217,525,123.74

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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.