Home / 108,640,344.80-162,989,385.60-47,203,140.80

Finding the Fourth Proportional to 108,640,344.80, 162,989,385.60 and 47,203,140.80

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Solution

The fourth proportional to 108,640,344.80, 162,989,385.60 and 47,203,140.80 is: 70,817,254.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,640,344.80 : 162,989,385.60 = 47,203,140.80 : x
  2. Step 2: Convert to fraction form
    108,640,344.80/162,989,385.60 = 47,203,140.80/x
  3. Step 3: Cross multiply
    108,640,344.80x = 162,989,385.60 × 47,203,140.80
  4. Step 4: Simplify right side
    108,640,344.80x = 7,693,610,917,382,292
  5. Step 5: Solve for x
    x = 7,693,610,917,382,292/108,640,344.80
  6. Step 6: Final answer
    x = 70,817,254.23

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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.