Home / 427,153,877.94-640,792,216.36-132,072,010.06

Finding the Fourth Proportional to 427,153,877.94, 640,792,216.36 and 132,072,010.06

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Solution

The fourth proportional to 427,153,877.94, 640,792,216.36 and 132,072,010.06 is: 198,126,999.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,153,877.94 : 640,792,216.36 = 132,072,010.06 : x
  2. Step 2: Convert to fraction form
    427,153,877.94/640,792,216.36 = 132,072,010.06/x
  3. Step 3: Cross multiply
    427,153,877.94x = 640,792,216.36 × 132,072,010.06
  4. Step 4: Simplify right side
    427,153,877.94x = 84,630,716,045,467,616
  5. Step 5: Solve for x
    x = 84,630,716,045,467,616/427,153,877.94
  6. Step 6: Final answer
    x = 198,126,999.23

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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.