Home / 129,345,124.80-194,159,404.80-80,877,705.60

Finding the Fourth Proportional to 129,345,124.80, 194,159,404.80 and 80,877,705.60

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Solution

The fourth proportional to 129,345,124.80, 194,159,404.80 and 80,877,705.60 is: 121,405,172.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,345,124.80 : 194,159,404.80 = 80,877,705.60 : x
  2. Step 2: Convert to fraction form
    129,345,124.80/194,159,404.80 = 80,877,705.60/x
  3. Step 3: Cross multiply
    129,345,124.80x = 194,159,404.80 × 80,877,705.60
  4. Step 4: Simplify right side
    129,345,124.80x = 15,703,167,180,885,626
  5. Step 5: Solve for x
    x = 15,703,167,180,885,626/129,345,124.80
  6. Step 6: Final answer
    x = 121,405,172.44

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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.