Home / 571,328,345.68-788,441,755.80-320,488,341.52

Finding the Fourth Proportional to 571,328,345.68, 788,441,755.80 and 320,488,341.52

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Solution

The fourth proportional to 571,328,345.68, 788,441,755.80 and 320,488,341.52 is: 442,278,757.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,328,345.68 : 788,441,755.80 = 320,488,341.52 : x
  2. Step 2: Convert to fraction form
    571,328,345.68/788,441,755.80 = 320,488,341.52/x
  3. Step 3: Cross multiply
    571,328,345.68x = 788,441,755.80 × 320,488,341.52
  4. Step 4: Simplify right side
    571,328,345.68x = 252,686,390,701,458,816
  5. Step 5: Solve for x
    x = 252,686,390,701,458,816/571,328,345.68
  6. Step 6: Final answer
    x = 442,278,757.24

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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.