Home / 620,209,960.39-929,438,061.57-343,982,871.82

Finding the Fourth Proportional to 620,209,960.39, 929,438,061.57 and 343,982,871.82

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Solution

The fourth proportional to 620,209,960.39, 929,438,061.57 and 343,982,871.82 is: 515,487,970.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,209,960.39 : 929,438,061.57 = 343,982,871.82 : x
  2. Step 2: Convert to fraction form
    620,209,960.39/929,438,061.57 = 343,982,871.82/x
  3. Step 3: Cross multiply
    620,209,960.39x = 929,438,061.57 × 343,982,871.82
  4. Step 4: Simplify right side
    620,209,960.39x = 319,710,773,598,824,384
  5. Step 5: Solve for x
    x = 319,710,773,598,824,384/620,209,960.39
  6. Step 6: Final answer
    x = 515,487,970.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.