Home / 108,640,140.80-162,989,079.60-47,202,936.80

Finding the Fourth Proportional to 108,640,140.80, 162,989,079.60 and 47,202,936.80

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Solution

The fourth proportional to 108,640,140.80, 162,989,079.60 and 47,202,936.80 is: 70,816,948.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,640,140.80 : 162,989,079.60 = 47,202,936.80 : x
  2. Step 2: Convert to fraction form
    108,640,140.80/162,989,079.60 = 47,202,936.80/x
  3. Step 3: Cross multiply
    108,640,140.80x = 162,989,079.60 × 47,202,936.80
  4. Step 4: Simplify right side
    108,640,140.80x = 7,693,563,223,448,969
  5. Step 5: Solve for x
    x = 7,693,563,223,448,969/108,640,140.80
  6. Step 6: Final answer
    x = 70,816,948.20

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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.