Home / 171,909,638.10-257,864,457.15-117,490,079.70

Finding the Fourth Proportional to 171,909,638.10, 257,864,457.15 and 117,490,079.70

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Solution

The fourth proportional to 171,909,638.10, 257,864,457.15 and 117,490,079.70 is: 176,235,119.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,909,638.10 : 257,864,457.15 = 117,490,079.70 : x
  2. Step 2: Convert to fraction form
    171,909,638.10/257,864,457.15 = 117,490,079.70/x
  3. Step 3: Cross multiply
    171,909,638.10x = 257,864,457.15 × 117,490,079.70
  4. Step 4: Simplify right side
    171,909,638.10x = 30,296,515,622,350,736
  5. Step 5: Solve for x
    x = 30,296,515,622,350,736/171,909,638.10
  6. Step 6: Final answer
    x = 176,235,119.55

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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.