Home / 340,410,418-510,615,638.52-85,108,786

Finding the Fourth Proportional to 340,410,418, 510,615,638.52 and 85,108,786

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Solution

The fourth proportional to 340,410,418, 510,615,638.52 and 85,108,786 is: 127,663,181.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,410,418 : 510,615,638.52 = 85,108,786 : x
  2. Step 2: Convert to fraction form
    340,410,418/510,615,638.52 = 85,108,786/x
  3. Step 3: Cross multiply
    340,410,418x = 510,615,638.52 × 85,108,786
  4. Step 4: Simplify right side
    340,410,418x = 43,457,877,107,052,032
  5. Step 5: Solve for x
    x = 43,457,877,107,052,032/340,410,418
  6. Step 6: Final answer
    x = 127,663,181.88

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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.