Home / 395,541,653.79-545,820,874.92-219,323,125.51

Finding the Fourth Proportional to 395,541,653.79, 545,820,874.92 and 219,323,125.51

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Solution

The fourth proportional to 395,541,653.79, 545,820,874.92 and 219,323,125.51 is: 302,651,159.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,541,653.79 : 545,820,874.92 = 219,323,125.51 : x
  2. Step 2: Convert to fraction form
    395,541,653.79/545,820,874.92 = 219,323,125.51/x
  3. Step 3: Cross multiply
    395,541,653.79x = 545,820,874.92 × 219,323,125.51
  4. Step 4: Simplify right side
    395,541,653.79x = 119,711,140,254,692,608
  5. Step 5: Solve for x
    x = 119,711,140,254,692,608/395,541,653.79
  6. Step 6: Final answer
    x = 302,651,159.76

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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.