Home / 16,979,220.40-25,468,830.60-11,877,386.80

Finding the Fourth Proportional to 16,979,220.40, 25,468,830.60 and 11,877,386.80

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Solution

The fourth proportional to 16,979,220.40, 25,468,830.60 and 11,877,386.80 is: 17,816,080.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,979,220.40 : 25,468,830.60 = 11,877,386.80 : x
  2. Step 2: Convert to fraction form
    16,979,220.40/25,468,830.60 = 11,877,386.80/x
  3. Step 3: Cross multiply
    16,979,220.40x = 25,468,830.60 × 11,877,386.80
  4. Step 4: Simplify right side
    16,979,220.40x = 302,503,152,379,876.12
  5. Step 5: Solve for x
    x = 302,503,152,379,876.12/16,979,220.40
  6. Step 6: Final answer
    x = 17,816,080.20

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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.