Home / 252,219,886.49-378,439,051.93-135,499,056.80

Finding the Fourth Proportional to 252,219,886.49, 378,439,051.93 and 135,499,056.80

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Solution

The fourth proportional to 252,219,886.49, 378,439,051.93 and 135,499,056.80 is: 203,307,262.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,219,886.49 : 378,439,051.93 = 135,499,056.80 : x
  2. Step 2: Convert to fraction form
    252,219,886.49/378,439,051.93 = 135,499,056.80/x
  3. Step 3: Cross multiply
    252,219,886.49x = 378,439,051.93 × 135,499,056.80
  4. Step 4: Simplify right side
    252,219,886.49x = 51,278,134,590,570,272
  5. Step 5: Solve for x
    x = 51,278,134,590,570,272/252,219,886.49
  6. Step 6: Final answer
    x = 203,307,262.18

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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.