Home / 289,539,652.70-399,567,559.89-157,380,567.66

Finding the Fourth Proportional to 289,539,652.70, 399,567,559.89 and 157,380,567.66

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Solution

The fourth proportional to 289,539,652.70, 399,567,559.89 and 157,380,567.66 is: 217,186,726.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,539,652.70 : 399,567,559.89 = 157,380,567.66 : x
  2. Step 2: Convert to fraction form
    289,539,652.70/399,567,559.89 = 157,380,567.66/x
  3. Step 3: Cross multiply
    289,539,652.70x = 399,567,559.89 × 157,380,567.66
  4. Step 4: Simplify right side
    289,539,652.70x = 62,884,169,394,009,240
  5. Step 5: Solve for x
    x = 62,884,169,394,009,240/289,539,652.70
  6. Step 6: Final answer
    x = 217,186,726.61

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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.