Home / 653,346,421.37-901,618,191.21-355,988,663.54

Finding the Fourth Proportional to 653,346,421.37, 901,618,191.21 and 355,988,663.54

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Solution

The fourth proportional to 653,346,421.37, 901,618,191.21 and 355,988,663.54 is: 491,264,426.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,346,421.37 : 901,618,191.21 = 355,988,663.54 : x
  2. Step 2: Convert to fraction form
    653,346,421.37/901,618,191.21 = 355,988,663.54/x
  3. Step 3: Cross multiply
    653,346,421.37x = 901,618,191.21 × 355,988,663.54
  4. Step 4: Simplify right side
    653,346,421.37x = 320,965,854,912,200,128
  5. Step 5: Solve for x
    x = 320,965,854,912,200,128/653,346,421.37
  6. Step 6: Final answer
    x = 491,264,426.37

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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.