Home / 28,515,982.65-42,756,887.43-9,076,813.71

Finding the Fourth Proportional to 28,515,982.65, 42,756,887.43 and 9,076,813.71

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Solution

The fourth proportional to 28,515,982.65, 42,756,887.43 and 9,076,813.71 is: 13,609,781.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,515,982.65 : 42,756,887.43 = 9,076,813.71 : x
  2. Step 2: Convert to fraction form
    28,515,982.65/42,756,887.43 = 9,076,813.71/x
  3. Step 3: Cross multiply
    28,515,982.65x = 42,756,887.43 × 9,076,813.71
  4. Step 4: Simplify right side
    28,515,982.65x = 388,096,302,021,550.69
  5. Step 5: Solve for x
    x = 388,096,302,021,550.69/28,515,982.65
  6. Step 6: Final answer
    x = 13,609,781.81

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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.