Home / 472,645,458.38-651,644,438.51-387,559,086.31

Finding the Fourth Proportional to 472,645,458.38, 651,644,438.51 and 387,559,086.31

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Solution

The fourth proportional to 472,645,458.38, 651,644,438.51 and 387,559,086.31 is: 534,334,391.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,645,458.38 : 651,644,438.51 = 387,559,086.31 : x
  2. Step 2: Convert to fraction form
    472,645,458.38/651,644,438.51 = 387,559,086.31/x
  3. Step 3: Cross multiply
    472,645,458.38x = 651,644,438.51 × 387,559,086.31
  4. Step 4: Simplify right side
    472,645,458.38x = 252,550,723,187,928,576
  5. Step 5: Solve for x
    x = 252,550,723,187,928,576/472,645,458.38
  6. Step 6: Final answer
    x = 534,334,391.05

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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.