Home / 661,160,721.96-912,374,441.04-359,747,274.12

Finding the Fourth Proportional to 661,160,721.96, 912,374,441.04 and 359,747,274.12

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Solution

The fourth proportional to 661,160,721.96, 912,374,441.04 and 359,747,274.12 is: 496,436,353.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,160,721.96 : 912,374,441.04 = 359,747,274.12 : x
  2. Step 2: Convert to fraction form
    661,160,721.96/912,374,441.04 = 359,747,274.12/x
  3. Step 3: Cross multiply
    661,160,721.96x = 912,374,441.04 × 359,747,274.12
  4. Step 4: Simplify right side
    661,160,721.96x = 328,224,218,140,898,624
  5. Step 5: Solve for x
    x = 328,224,218,140,898,624/661,160,721.96
  6. Step 6: Final answer
    x = 496,436,353.88

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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.