Home / 211,252,141.50-316,654,563.92-71,059,137.47

Finding the Fourth Proportional to 211,252,141.50, 316,654,563.92 and 71,059,137.47

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Solution

The fourth proportional to 211,252,141.50, 316,654,563.92 and 71,059,137.47 is: 106,513,477.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,252,141.50 : 316,654,563.92 = 71,059,137.47 : x
  2. Step 2: Convert to fraction form
    211,252,141.50/316,654,563.92 = 71,059,137.47/x
  3. Step 3: Cross multiply
    211,252,141.50x = 316,654,563.92 × 71,059,137.47
  4. Step 4: Simplify right side
    211,252,141.50x = 22,501,200,187,343,068
  5. Step 5: Solve for x
    x = 22,501,200,187,343,068/211,252,141.50
  6. Step 6: Final answer
    x = 106,513,477.34

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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.