Home / 385,666,749-532,252,936.68-218,432,759.04

Finding the Fourth Proportional to 385,666,749, 532,252,936.68 and 218,432,759.04

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Solution

The fourth proportional to 385,666,749, 532,252,936.68 and 218,432,759.04 is: 301,455,797.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,666,749 : 532,252,936.68 = 218,432,759.04 : x
  2. Step 2: Convert to fraction form
    385,666,749/532,252,936.68 = 218,432,759.04/x
  3. Step 3: Cross multiply
    385,666,749x = 532,252,936.68 × 218,432,759.04
  4. Step 4: Simplify right side
    385,666,749x = 116,261,477,466,154,816
  5. Step 5: Solve for x
    x = 116,261,477,466,154,816/385,666,749
  6. Step 6: Final answer
    x = 301,455,797.70

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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.