Home / 129,400,538.80-194,100,808.20-61,376,090.80

Finding the Fourth Proportional to 129,400,538.80, 194,100,808.20 and 61,376,090.80

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Solution

The fourth proportional to 129,400,538.80, 194,100,808.20 and 61,376,090.80 is: 92,064,136.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,400,538.80 : 194,100,808.20 = 61,376,090.80 : x
  2. Step 2: Convert to fraction form
    129,400,538.80/194,100,808.20 = 61,376,090.80/x
  3. Step 3: Cross multiply
    129,400,538.80x = 194,100,808.20 × 61,376,090.80
  4. Step 4: Simplify right side
    129,400,538.80x = 11,913,148,828,436,584
  5. Step 5: Solve for x
    x = 11,913,148,828,436,584/129,400,538.80
  6. Step 6: Final answer
    x = 92,064,136.20

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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.