Home / 639,819,579.69-882,954,285.01-357,566,731.34

Finding the Fourth Proportional to 639,819,579.69, 882,954,285.01 and 357,566,731.34

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Solution

The fourth proportional to 639,819,579.69, 882,954,285.01 and 357,566,731.34 is: 493,443,913.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,819,579.69 : 882,954,285.01 = 357,566,731.34 : x
  2. Step 2: Convert to fraction form
    639,819,579.69/882,954,285.01 = 357,566,731.34/x
  3. Step 3: Cross multiply
    639,819,579.69x = 882,954,285.01 × 357,566,731.34
  4. Step 4: Simplify right side
    639,819,579.69x = 315,715,077,608,363,776
  5. Step 5: Solve for x
    x = 315,715,077,608,363,776/639,819,579.69
  6. Step 6: Final answer
    x = 493,443,913.93

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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.