Home / 28,870,175.20-43,316,926.80-12,699,205.60

Finding the Fourth Proportional to 28,870,175.20, 43,316,926.80 and 12,699,205.60

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Solution

The fourth proportional to 28,870,175.20, 43,316,926.80 and 12,699,205.60 is: 19,053,939.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,870,175.20 : 43,316,926.80 = 12,699,205.60 : x
  2. Step 2: Convert to fraction form
    28,870,175.20/43,316,926.80 = 12,699,205.60/x
  3. Step 3: Cross multiply
    28,870,175.20x = 43,316,926.80 × 12,699,205.60
  4. Step 4: Simplify right side
    28,870,175.20x = 550,090,559,393,350
  5. Step 5: Solve for x
    x = 550,090,559,393,350/28,870,175.20
  6. Step 6: Final answer
    x = 19,053,939.08

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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.