Home / 639,576,342.18-882,621,437.13-375,262,832.22

Finding the Fourth Proportional to 639,576,342.18, 882,621,437.13 and 375,262,832.22

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Solution

The fourth proportional to 639,576,342.18, 882,621,437.13 and 375,262,832.22 is: 517,866,278.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,576,342.18 : 882,621,437.13 = 375,262,832.22 : x
  2. Step 2: Convert to fraction form
    639,576,342.18/882,621,437.13 = 375,262,832.22/x
  3. Step 3: Cross multiply
    639,576,342.18x = 882,621,437.13 × 375,262,832.22
  4. Step 4: Simplify right side
    639,576,342.18x = 331,215,020,275,490,496
  5. Step 5: Solve for x
    x = 331,215,020,275,490,496/639,576,342.18
  6. Step 6: Final answer
    x = 517,866,278.71

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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.