Home / 389,644,235.82-537,708,875.52-211,028,132.34

Finding the Fourth Proportional to 389,644,235.82, 537,708,875.52 and 211,028,132.34

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Solution

The fourth proportional to 389,644,235.82, 537,708,875.52 and 211,028,132.34 is: 291,218,730.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,644,235.82 : 537,708,875.52 = 211,028,132.34 : x
  2. Step 2: Convert to fraction form
    389,644,235.82/537,708,875.52 = 211,028,132.34/x
  3. Step 3: Cross multiply
    389,644,235.82x = 537,708,875.52 × 211,028,132.34
  4. Step 4: Simplify right side
    389,644,235.82x = 113,471,699,740,938,608
  5. Step 5: Solve for x
    x = 113,471,699,740,938,608/389,644,235.82
  6. Step 6: Final answer
    x = 291,218,730.60

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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.