Home / 718,086,341.34-991,003,559.76-396,212,735.07

Finding the Fourth Proportional to 718,086,341.34, 991,003,559.76 and 396,212,735.07

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Solution

The fourth proportional to 718,086,341.34, 991,003,559.76 and 396,212,735.07 is: 546,798,077.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,086,341.34 : 991,003,559.76 = 396,212,735.07 : x
  2. Step 2: Convert to fraction form
    718,086,341.34/991,003,559.76 = 396,212,735.07/x
  3. Step 3: Cross multiply
    718,086,341.34x = 991,003,559.76 × 396,212,735.07
  4. Step 4: Simplify right side
    718,086,341.34x = 392,648,230,876,615,808
  5. Step 5: Solve for x
    x = 392,648,230,876,615,808/718,086,341.34
  6. Step 6: Final answer
    x = 546,798,077.43

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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.