Home / 72,115,755.36-108,172,688.16-17,528,182.31

Finding the Fourth Proportional to 72,115,755.36, 108,172,688.16 and 17,528,182.31

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Solution

The fourth proportional to 72,115,755.36, 108,172,688.16 and 17,528,182.31 is: 26,292,043.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,115,755.36 : 108,172,688.16 = 17,528,182.31 : x
  2. Step 2: Convert to fraction form
    72,115,755.36/108,172,688.16 = 17,528,182.31/x
  3. Step 3: Cross multiply
    72,115,755.36x = 108,172,688.16 × 17,528,182.31
  4. Step 4: Simplify right side
    72,115,755.36x = 1,896,070,598,490,395
  5. Step 5: Solve for x
    x = 1,896,070,598,490,395/72,115,755.36
  6. Step 6: Final answer
    x = 26,292,043.80

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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.