Home / 119,616,091.20-179,424,136.80-78,801,422.40

Finding the Fourth Proportional to 119,616,091.20, 179,424,136.80 and 78,801,422.40

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Solution

The fourth proportional to 119,616,091.20, 179,424,136.80 and 78,801,422.40 is: 118,202,133.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,616,091.20 : 179,424,136.80 = 78,801,422.40 : x
  2. Step 2: Convert to fraction form
    119,616,091.20/179,424,136.80 = 78,801,422.40/x
  3. Step 3: Cross multiply
    119,616,091.20x = 179,424,136.80 × 78,801,422.40
  4. Step 4: Simplify right side
    119,616,091.20x = 14,138,877,192,732,186
  5. Step 5: Solve for x
    x = 14,138,877,192,732,186/119,616,091.20
  6. Step 6: Final answer
    x = 118,202,133.60

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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.